Ronstan (RF45521) Series 40 Orbit Block with Cleat and Dynema Link Head.

Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.

• Sheave diameter 40mm + 22mm
• Maximum rope diameter 9mm
• Maximum working load 325kg
• Breaking load 700kg
• Weight 108g