The Konova K2 Slider is a 31.5″ slider that allows for stable and smooth photo and video takes. The slider has three pairs of 1/4″and 3/8″ screws in the base, and is equipped with two oil seals for removing dust and water. The K2 slider system is compatible with the Canon 7D, Canon 5D Mk II/III, Canon 60D, Canon 500D/600D, Nikon D800/D7000, Sony A77, and other similarly-sized cameras.