Ronstan Track - Series 19 - Standard Profile pfd Ronstan BB Orbit Blocks™ feature

Ronstan BB Orbit Blocks™ feature strong

1 x woodruff key

resistant PVC and thermo plastic

With its Oxalic Acid formula

Ronstan Track - Series 19 - Standard Profile pfd Ronstan BB Orbit Blocks™ featurePatented system uses low profile cars running on twin races of acetal ball bearings. Cars use the existing luff groove of the mast (no track or installation work required). Ball bearings are captive for easy loading and unloading of cars from mast. They can be easily switched between fully battened and soft luff mainsails. Minimum distance from mast to mainsail luff enhances mainsail efficiency. With a complete range of car profiles and feet there is