[Multi-purpose] Hydraulic cylinder seal kit tool for installing internal seals on external support rings, which are usually found on cylinders. Using a hydraulic tool helps reduce the chance of installation damage. [High-quality material] Hydraulic cylinder seal kit tool using high-quality metal, corrosion-resistant, wear-resistant. And the smooth surface will not damage the seals. [Easy to use] Very easy to use, only need two steps. And with the hydraulic cylinder seal tool, you can quickly complete the seal installation and it does not require much effort. [Multiple sizes] Hydraulic cylinder seal kit. When you purchase, you will get three different sizes of different size seals. Compact size, convenient to carry. [Size] L: 70-165MM (2.75 inch - 6.49 inch ROD); M: 40-70mm (1.57-2.75 inch ROD); S: 22-40mm (0.87" - 1.57" rod) Color: Silver Material: Metal Package Contents: 3 x Hydraulic U-Shape Seal Twistor Installation Tool Only the above package contents, other products are not included. Note: Light and different displays may cause the color of the item to be slightly different from the real thing. Please allow +/- 1-3cm measurement error.