Selden Linked 30mm & 40mm ball bearing block. Perfect for travelers, such as on the RS Zest. Stainless steel ball bearing races, stainless steel ball bearings and glass fibre reinforced sheave for best strength even under high dynamic loads. Acetal bearing cage to prevent ball-to-ball friction and to reduce weight. Composite, 50% Glass fibre and 50% Polyamide.

• Sheave Diameter: 40mm
• Safe Working Load: 200kg
• Breaking Load: 400kg
• Max Line: 10mm
• Linked Block (max line size for 30mm block = 8mm)