Sea Sure 25mm Double V-jammer _Zhik_New_Us_Sizing The block still fits in

The block still fits in the same footprint as the older A2020Tii and makes use of the same three sheave options which are tried and tested across the 20mm range

16 mm AirBlock® sheaves are Delrin® and feature stainless ball bearings that ride in a grooved race

8mm / 1 1/4"

Pin Diameter: 8mm for a secure and stable connection

Sea Sure 25mm Double V-jammer _Zhik_New_Us_Sizing The block still fits inClassic Sea Sure designed 25mm blocks. An inexpensive range of lead blocks. Manufactured in the UK from guaranteed 316 Stainless steel. The plain bearing and tough Arnite sheave means they just keep on going. Many blocks from this range can still be found on many many Olympic class masts because they simply work and are virtually indestructible! The 00. 25 can he used to create a 4: 1 or 5: 1 purchase system to aid lifting of heavier objects and