Description Nylon paddles feature T-shaped ends that slide into the Tank Tread Chain Links to create conveyor-type mechanisms. With the TETRIX hole pattern you can build scoops levers and other devices right on the paddles using standard TETRIX parts. Each paddle is 50 mm x 40 mm. What you will get 24 Tank Tread Conveyor Paddles Specifications Quantity: pkg of 24 Nominal Size: 50 mm x 40 mm Thickness: 1.3 mm Material: nylon Weight: 2.6 grams per conveyor paddle Weight: 67.5 grams per pkg.