【Complete Piston Ring Installation Kit】The package includes 1 pliers and 14 piston rings of different sizes, designed for smooth piston installation in the compression cylinder. Piston ring diameters range from 62-145mm/2.44-5.71", accommodating various engine types. Note: Please select the appropriate size for seamless use. 【Precise and Time-Saving】Our fine-tooth ratchet pliers offer flexible usage and allow parallel or perpendicular use with the cylinder block to quickly insert and precisely compress pistons, saving time and effort. The fine-tooth locking design enables you to compress the band in small increments. 【Durable and Reliable Materials】Boasting robust and wear-resistant carbon steel, the pliers resist deformation, bending, and breaking, ensuring a long service life. The piston rings, made from heat-treated blue steel, exhibit high hardness and formidable grip strength, bringing maximum durability. 【Effortless Handling & Portable Toolbox】Equipped with a high-elasticity spring and anti-slip rubber-coated handle, our pliers provide comfortable and effortless operation. The included plastic toolbox with a handle securely houses the piston rings and pliers, preventing scattering or loss, while facilitating easy transportation to various job sites. 【Practical Repair Tool Kit】With meticulous workmanship, this innovative automotive repair tool kit effortlessly resolves the challenges of piston assembly, significantly enhancing work efficiency, which is a must-have for tractors, cars, trucks, race cars, and diesel engines. Color: silver/green/red Material: carbon steel/plastic Box Size: 10.6×8.7×2.4in Package Includes: 1×pliers, 14×piston ring, 1×toolbox Note: - Please refer to the measurement. Tiny measuring error is allowable in normal range. - There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. Package Including 1×pliers, 14×piston ring, 1×toolbox