The new F-One V-Straps have been specifically designed for foilboards. The shape and material have been selected to bring maximum comfort and support while riding. Both straps have a thin layer of neo-fleece material on the inside that will bring extra comfort and softness. The main V-shaped piece for your front foot is compatible with boards that have one or two rows of inserts. M6 Screw Set: 1x Front V-Strap 1x Back strap 1x V-Block, to place at the centre of the V-strap for the screws 4x Plastic shims 6x M6 22mm screws (SST 316) 6x Metal washers (SST 316), 12mm external diameter Recommended for : Pocket, Pocket Carbon, Rocket ASC. Self-Tapping Screw Set: 1x Front V-Strap 1x Back strap 1x V-Block, to place at the centre of the V-strap for the screws 6x Self-tapping screws 5x25mm (SUS 316) 6x Metal washers (SST 316), 14mm external diameter 4x Plastic washers (thickness = 2mm), 17mm external diameter Recommended for : Rocket Wing, Rocket Wing Carbon, Rockey Wing-S, Rocket Wing-S Carbon, Pocket Carbon Custom.