Unassembled Circulator, Stationary, Pedestal, 30 in, 1 4 hp, 2 Speed no checkout Jam proof mechanism Retractable striking surface to Jam proof mechanism Retractable striking surface to prevent damage High carbon hardened steel working parts for"creased durability Increases chain and wire rope life Effective under extreme temperature and pressure ranges Deep penetration to the core of wire ropes Reduces wear caused by friction and corrosion Lubricant and corrosion protectant Totally enclosed ball bearing motor with pull chain switch Chrome plated double locking steel wire guards Oscillating models sweep horizontally in a 90° arc or can be locked in a fixed position