Feature: 1. Sealing the combustion chamber of the piston ring and the piston housing and transfer heat from the piston to the cylinder is main function. 2. Our piston ring sets can provide better sealing, improve percompatible withmance and reduce fuel consumption. 3. It is suitable compatible with cylinders with a cylinder diameter of 65mm, 2.2KW3.0KW motors, 0.250.36 air compressors, air pumps, etc. 4. The piston ring is made of high quality materials, which are effective in anti oxidation, anti rust and long service life. 5. Please note that when replacing the piston ring, turn off the air compressor and release the pressure. Specification: Item Type: Piston Ring Material: Titanium Alloy Suitable Piston Diameter: Approx. 65mm/2.6in Purpose: Piston ring is suitable compatible with cylinder with diameter 65mm, 2.2KW 3.0KW motor, 0.25 0.36 air compressor, air pump, etc.. Package List: 2 x Gas Ring1 x Oil Ring Note: When replacing the piston ring, please turn off the air compressor and release the pressure.