Harken 75mm Carbo Ratchamatic Single Block with Swivel Head and Becket Sale_20plus Designer Julian Bethwaite had also

Designer Julian Bethwaite had also been thinking along the same lines and had produced a prototype of the Keyball trapeze system

50 Litre Capacity

Height 114mm Weight 340g Min Line 3mm Maximum line 12mm Fastener Spacing 19mm Fasteners 5mm Use With 57mm/Big Bullet/2

This is very important

See the picture above of the block attached to a lacing eye for example on how to cross the Tii-Shackle

Harken 75mm Carbo Ratchamatic Single Block with Swivel Head and Becket Sale_20plus Designer Julian Bethwaite had alsoHarken 75mm Carbo Ratchamatic Single Block with Swivel Head & Becket Rope Max 12mm Sheave 75mm Diameter Breaking Strength 1361Kg Max Working Load 341Kg