[Material]: Stainless steel, -, wear-.Smooth installation not damage the seal kit. [Easy to use]: Combine the tools, with the thick round rod facing out and the thin movable rod facing inward, then open the movable rod and form the sealing rubber ring into a "Ω" shape [Versatile]: Hydraulic seal installation tool kit Used to install internal seals commonly found on hydraulic piston rods and sealing installation of double lip rubber in mechanical shaft. [Multiple Sizes ]: After purchase you receive 3 sizes of double lip oil seal installation tool for different sized tools. Small size, easy to carry., Weight: 0.95680621708 pounds, Manufacturer: Gishbjka