Features: * brand new and high quality *Item type: Engine Cylinder Hone Replacement Stones*Engine cylinder hone replacement stones. 3-piece packed.*Designed for profeional auto mechanics and heavy duty applications.*Stones are glued firmly to aluminum holder. Heavy duty construction ensures durability. Specifications: *Color: As Pictures Show *Material: 45# Steel Galvanized *Specification 1: 1-1/8" three-claw cylinder sander Size range: 3/4" to 2-1/2" Grinding stone length: 28*6mm *Specification 2: 2" cylinder sander Size range: 1-1/4" to 3-1/2" (32-89mm) Grinding stone length: 51*7mm *Specification 3: 3" cylinder sander Size range: 2" to 7" (51-177) Grinding stone length: 76*10mm *Specification 4: 4" cylinder sander Size range: 2" to 7" (51-177) Grinding stone length: 100*11mm *Optional Size: 1-1/8inch, 2inch, 3inch, 4inch Package Contents: 1SetEngine Cylinder Hone Replacement Stones(3pcs) Note:The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightne of your monitor and light brightne.