The Size 6 Barton blocks are designed as our high load cruiser block range and is of rugged construction. Made with ball bearing technology. Plain bearing versions are available. It features high grade injection moulded side plates, with all load carrying components from 316 grade stainless steel. Side plates are through-bolted and riveted for added strength and security. This good looking and versatile range is designed for use on larger cruising and racing yachts. All are designed for ease of use with our ball bearing mainsheet traveller system. Designed around a 64mm/ 2 _Ó sheave and to work with 14mm 9/16Ó ropes.