Rated 4.9 out of 5 by our customers

Rated 4.9 out of 5 by our customers

5 Star Rated by Sailors
Over 60,000+ Orders Shipped
90 Day Risk Free Returns
Price Match Promise
Fast Dispatch and 5 Star Customer Rated
April 03, 2025 5 min read
Harken 29mm blocks are the most popular and most used blocks in the Harken block range. The 29mm blocks can be found fitted to new boats or, if you are upgrading an older boat. They are lightweight, strong, reliable and affordable.
Low-friction Harken 29mm Carbo AirBlocks® from Harken are lightweight, strong, reliable and affordable.
The 29mm block is the most popular Harken product Sailing Chandlery sell and is perfect for halyards and control systems.
This low friction 29mm Harken carbo block with becket is compact, lightweight, strong and reliable.
It is ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes.
This version of the Harken 29mm block has a swivel head and becket on the bottom.
The popular Harken 29mm block with two blocks and a swivel feature at the top.
Ideal for purchase systems which need to be flexible.
The popular Harken 29mm block with two blocks a swivel feature and becket.
Ideal for purchase systems which need to be flexible.
This Harken triple 29mm carbo block set comes complete with a becket and cam cleat. Popular for use in kicker systems on dinghies.
Low-friction Harken 29mm Carbo AirBlocks® from Harken are lightweight, strong, reliable and affordable.
The 29mm block is the most popular Harken product Sailing Chandlery sell and is perfect for halyards and control systems.
Harken low friction 29mm Carbo AirBlock which is lightweight, strong, reliable and affordable.
This Harken block comes with a spring and bracket to hold the block in an upright position.
29mm Harken Cheek Blocks are low friction Carbo Air blocks which mount to the deck of your boat. They are lightweight, strong and reliable.
A low friction 29mm carbo air blocks that is lightweight, strong and reliable.
This small and compact block has a very high working loads for safe and easy trimming on your sailing dinghy.
The metal head on this block can move up to a 90 degree angle to allow the block to move freely from different sheeting angles.
Low friction Harken 29mm Carbo AirBlocks® are lightweight, strong, reliable and affordable.
These small, compact blocks have very high working loads for safe, easy trimming on your boat.
These Harken 29mm blocks are joint together to allow a purchase system running in two different directions or at different angles. Perfect for traveller systems.
Low friction Harken 29mm Carbo AirBlocks® are lightweight, strong, reliable and affordable.
These small, compact blocks have very high working loads for safe, easy trimming.
These two blocks are joint with a metal ring to allow for a flexible double purchase system pulling in different directions.
Rope can also be tied to the ring to keep the blocks in position.
This Harken 29mm double block creates low friction and is lightweight, strong and reliable.
These small, compact blocks have very high working loads for safe, easy trimming.
\Ideal for a mainsheet or jib purchase system.
Harken high strength pivoting lead blocks with cam cleats are used for halyard controls on larger keelboats and as “head knockers” on dinghies and beachcats for sheeting directly from the boom.
They are also seen on catamaran masts for kite hoists and cleating.
Hole spacing and rivet size are the same as Classic models, making upgrades easy. The cam cleat can be reversed for either up or downward cleating.
Please note: This product comes with a lead time expected to be up to 10 working days.
Footnote - Maximum working loads and breaking loads for blocks based on cam strengths.
I rang to request some advice on replacement parts for my dinghy and was very impressed with the excellent advice and efficient delivery of the required parts. Many thanks
Great product, safely packaged, delivered on time, at a competitive price. One more thing - the person on the end of the phone is an actual person, informative, helpful, knowledgeable and pleasant. What more could you ask for.
The sales team were quick responding to our questions, dispatched to us promptly, and the product is a perfect replacement for our old tiller which ended up at the bottom of a lake!
It was time for me to upgrade to a newer Ilca and it was recommended that I get a Devoti. The price was competitive and the service from Andrew and his team was fantastic. I received lots of communication and the boat was delivered to me within 2 weeks. It is really great that Sailing Chandlery take the time to set up the rigging so that you can get straight on the water. I am very pleased with my new boat and am loving sailing it. Thank you Sailing Chandlery!
Ordered a dyneema RSAero halyard on the Thursday. It arrived by mid day on the Friday and was used on the Saturday. Excellent product and service. Thank you
Cover arrived after three days and is well made and completely covers the boat boom up . The straps and clips all work fine. Good product.
My local chandlery were unable to supply a white inspection hatch and so it was amatter of looking online. Sailing Chandlery had the cover I needed in stock at a good price and delivery. I had never used them before but the service I received was excellent with the delivery on time and the hatch is now fitted.
I will definitely return, especially with the discounts on offer. Thank you Sailing Chandlery!
Always happy with my orders from Sailing Chandlery. They are quick to post and very helpful when I have had a question.
Jason delivered the boat on time at Hayling Island Sailing Club. The boat was new and all the spars were in perfect condition. Jason came to pick up the boat and return the deposit which I gave at the time of the delivery. Every interaction with Andrew and Jason were handled very professionally. I will recommend to any sailor Sailing Chandlery in the future. I really appreciated how easy it was to charter this boat. Thank you very much. Jacques Kerrest
Prompt delivery, with helpful updates and time slot spot on. Perfect new sail at a great price and the number fixing service is well worth it. It even won its first race! Thank you.
I needed GBR letters for the ILCA Europeans and they arrived by the next post.
I made a mistake on my order and it was put right at zero cost to me ! Amazing !
I’ll certainly be back
Product exactly what I wanted
Excellent service and prompt delivery.
Had the boom and mast in stock. Order processed quickly, great service and local so could pick them up. Friendly and helpful staff as always. Thank you
Delivered on time after chatting by phone to a very helpful person at Sailing chandlery. Absolutely no complaint with this Company and will continue to use them for my sailing needs.
Save up to 40%on your next order.