Features: 1. Application: 4 sizes Hydraulic U-Cup Twistor Installation Tools are suitable for 7 Inch – 6. 5 Inch seals (20mm – 165mm). (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″. 2. What You Get: Include 1 x surface-mountable twister handle block, 1x double-sided sealing hook multi-function tool and 4 sizes of sealed twister tools. .