Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140] Sailing | Rope Insta-Trim's hinges prevent most spray

Insta-Trim's hinges prevent most spray and can be used for transom or bottom mounting

and can also be utilized for clear FM broadcast reception

New design is more secure and is not a prone to kick up at high force of waves

Two year limited warranty

Ronstan Series 30 Ball Bearing Orbit Block - Stand Up Swivel [RF35140] Sailing | Rope Insta-Trim's hinges prevent most spraySeries 30 Ball Bearing Orbit Block Stand Up Swivel 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 fiber reinforced composites in the block head, cleat arms and beckets. Features: