Sturdy material: dishwasher wheel is made of good material, wear resistant and not easy to crack, each piece has been inspected and test, durable and long time to use, to your need Easy to install: Quick and easy installation without tools. The old wheels are removed and the new ones can be installed in minutes Practical wheel: dishwasher replacement wheels attach to the bottom of the lower dishrack, allowing you to move the dish-rack in or out of the dishwasher. Best : safe, environmentally friendly and durable material, ball surface, non-deformable even at temperatures above 100C Spare wheel made of high plastic for long durability and attachment to the basket. Colour:grey Material:plastic Size:40 x 29mm Package Contents: 12 x Dishwasher Wheels Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.