Seal Twistors Install Tools Hydraulic Cylinder Piston Rod Seal U-Cup Twistor Installation Tool Set Work on 07 Inch 65 Inch Hydraulic Seal Installation Tool Set, U-Cup Rod Seal Twistor Kit with Two-Sided Seal Pick, Hydraulic Cylinder Piston Repair Tools for Easy, Damage-Free Seal Installation Application : For Hydraulic Cylinder skid steers, loaders, backhoes, etc. Function : Save Your Thumbs and Time with our Install Tools. Tools will bend the seal to a Kidney Bean shape to help insert and install in the cylinder groove.Also includes a plastic block handle holder you can screw into your work bench for help on tough seals. Dimension : 4 Sizes Seal Twistors Tools, 1 Surface Mountable Twistor Handle Block, and 1 Two Sided Seal Pick & Hook Multitool.This tool set includes a handle holder and the following sizes:(S) 20 - 30 mm / 0.7" - 1.187";(M) 30 - 50 mm / 1.187" - 2";(L) 50 - 70 mm / 2" - 2.75";(XL) 70 - 165 mm / 2.75" - 6.5" High quality : Made of high-quality steel and rubber materials, our professional technology makes the products more high-quality, durable and rust-free, which provides great convenience for maintenance workers. 100% Satisfaction Guarantee: If you're not 100% satisfied with our product, please feel free to contact us, simply return it for a full refund in 30 days. Premium Support & 12 months Warranty.