This 2-Ton bottle jack has a forged base and cylinder to ensure strength and eliminate leaks and the chrome piston pump and ram provides additional rust resistance. Covered by a 2 year limited warranty and we include a free seal kit to extend the products life. Specifications include: Stroke 4-5/8”, Retracted height minimum 7”, Length of screw extension 2-3/8”, Height with screw extension 14”, Saddle diameter 13/16”, and the base is 4-5/16" x 2-9/16”.