This item is a practical car engines piston ring compressor kit that will serve you well. ring demolition pliers can be parallel or perpendicular to the cylinder block and insert by a way. Features -Color: Assorted. -Material: Carbon steel, iron. -Size: About 18.50X7.00X3.00cm/7.27X2.75X1.18in. -Piston Diameter: 62mm-145mm(2.4''-5.7''). - It is made of carbon steel and iron material, which is not easy to rust and can be durable for a long time. - The set for compressing piston rings that used for cylinder installation. - The fine tooth lock allows you to compress the belt in small increments. - The diameter ranges of the rings are wide, various size can fit different types of motors. - With box, easy to carry, The kit is suitable for trucks, tractors, automobiles, racing engines. Package list: 28 x Piston Ring Compressors 2 x Pliers 2 x Carry Box