RONSTAN Thru-Deck Bushing, Screw On Item Type_Accessories Delrin® ball bearings are UV-stabilized

Delrin® ball bearings are UV-stabilized with carbon black for maximum protection

The bigger diameter sheave prevents distortion and reduces line wear while the Free-Spin bearing handles higher static loads

Wire Bullet blocks use roller bearings to carry higher loads and features Hard Lube-anodized aluminum sheaves for strength and corrosion resistance

They feature a precision two-stage bearing system for better durability

Durable construction ensures reliable performance in sailing applications

RONSTAN Thru-Deck Bushing, Screw On Item Type_Accessories Delrin® ball bearings are UV-stabilizedProvide chafe protection where lines pass through decks, bulkheads, or spars. Impact resistant, U. V. stabilized nylon with stainless steel insert.