Low-friction Micro blocks are compact and lightweight. They are ideal for sai lboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Our products are assured for reliability and durability which has high quality and standard. Our products are designed with the up to date designs and creativity. We always work towards to fulfill the requirements of our end users. Our products are assured for reliability and durability which has high quality and standard. Our products are designed with the up to date designs and creativity. We always work towards to fulfill the requirements of our end users. Specifications Sheave: 22 mm Length: 51 mm Maximum line: 6 mm Maximum working load: 550 lbs Breaking load: 1200 lbs Weight: 0.15 lbs