SEAL SIZE: Hydraulic Log Splitter Cylinder Rebuild Seal Kit Specifically designed to fit 4.0 inch Bore (I.D.) x 1.75 inch Rod (O.D.) Rod Cylinder. Please check that the inside diameter(I.D.) and outside diameter(O.D.) are the same size as your hydraulic cylinder before purchase COST-EFFECTIVE: Boost log splitter performance with Splitter Rebuild Seal Kit. Designed for 4.0 inch Bore x 1.75 inch Rod Cylinders, this kit ensures easy rebuilding, preventing oil leaks and damage. Elevate your log splitter's durability today GOOD SEAL NO LEAKS: Constructed of premium-grade material for better sealing performance without leakage. good abrasion resistance, decent tensile strength. Smooth surface, no burrs, better fit and provide long-lasting and reliable use without deformation PREMIUM QUALITY: Complete with all necessary seals and o-rings, this cylinder rebuild seal kit guarantees long-lasting durability and reliability. The colors of some accessories are randomly distributed and do not affect use. Colour: Black material: plastic Package Contents: 11 Packs of Log splitter cylinder rebuild seal kits 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.