Size 7 70mm Plain Bearing Pulley Block Single SwivelThe size 7 Barton high-load cruising block range is engineered for superior strength and performance and offers both plain and ball-bearing sheave assemblies. The range features high-grade glass fiber nylon reinforced molded side plates with an internal 316 stainless steel frame that is through-bolted and riveted for added strength and durability. This well-designed and versatile range is engineered for use on larger cruising and racing yachts and is compatible with our ball-bearing mainsheet traveler system.The 70mm sheave Size 7 high load cruising block range is engineered for superior strength and performance and offers both plain and ball-bearing sheave assemblies. The range features high-grade glass fiber nylon reinforced molded side plates with an internal 316 stainless steel frame that is through-bolted and riveted for added strength and durability. This well designed and versatile range is engineered for use on larger cruising and racing yachts and is compatible with our ball bearing mainsheet traveller system.Built with 70mm (2 13/16") sheaves and designed for a maximum rope size of 14mm 9/16" rope. - cis2:mm5mnJlm -