Description: Made of quality material; Piston installer plier used for installs and removes piston rings, thickness from 3/64 inch to 1/4 inch (1.2mm to 6.4mm). Adjustable sizes from 2-1/8inch to 7inch (53mm - 175mm). Professional installation recommend. Positive compression and adjustable friction brake. Specification: Finish: Nickel plated Capacity-Jaw: 6.4mm max Range: 1.2 - 6.4mm/0.05 - 0.25inch Compressor Height: 3inch(75mm) Compressor Fits Size: 2-1/8inch to 7inch (53mm - 175mm) Application: Piston 53mm-175mm Usage: Professional Material: steel colour: black Package Contents: 1 x Piston Ring Pliers 1 x Piston Ring Compressor 1 x Wrench Only the above package content, other products are not included. Note: Light reflection 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.