[Multi-purpose application]Hydraulic cylinder seal kit tool for installing internal seals for external retaining rings commonly 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 cause damage to the seals. [Easy to use]It is very easy to use, only two steps are needed. And with the hydraulic cylinder sealing tool, you can quickly complete the installation of the seal and it doesn't take a lot of effort. [Multiple sizes]Hydraulic cylinder seal kit. You will receive three different sizes of tools for different sizes of seals after your purchase. Compact size, convenient to carry. [Size]L:70-165MM (2.75inch - 6.49inch ROD); M:40-70MM (1.57inch - 2.75inch ROD); S:22-40mm(0.87inch - 1.57inch ROD) color:Silver Material:Metal Package Contents: 3 x Hydraulic U-Cup Seal Twistor Installation Tool Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.