Mast chock set, 8 pieces; with total thickness 70mm (2 3/4”); 1 x 20mm (25/32”) piece, 5 x 10mm (13/32”) pieces, suits mast with 50-60mm (2” - 2 3/8”) diameter.

• Used for quick, repeatable positioning of the mast

• U.V. stabilised Nylon