Ronstan Series 70 BB Orbit Block - Cheek RF75151 MEDIUM KEEL BOAT Ratchet Surface soil can be washed

Surface soil can be washed away with mild detergent

High strength-to-weight ratio

Will slow but may not completely stop leaks

Customers have used it for leak control and temporary repair of low-pressure storage tanks

Ronstan Series 70 BB Orbit Block - Cheek RF75151 MEDIUM KEEL BOAT Ratchet Surface soil can be washedBall Bearing Orbit Blocks boast the highest strength to weight ratio available. This is achieved through all composite reinforced polymer materials and a Dyneema rope link head. Their precision design allows the optimum number of ball bearings in loaded areas and eliminates them in inactive areas. Ineffective mass is reduced even further through fibre reinforced composites in the block head, cleat arms and beckets. Specifications Sheave 70 mm Max.