Resistance system for use with deluxe arm skate board

Resistance system for deluxe skate board is an adapted C-clamp that holds the skate board to the working surface and provides a “pulley” system for weighted resistance/assistance. Nine weights (approx. 4/10 lb each) are included. Deluxe skate board and skate sold separately. Deluxe Skateboard – Accessory Resistance System