This is a set of 8 tire covers. I bought them on a whim because I heard they were convenient, but I'm too lazy to use them, so I'm selling them. I opened the outer box to take pictures, but the covers themselves are new. The outer box is torn during opening. - Set includes: 8 tire covers - Color: Gray - Size: Diameter 5-6cm, Width 1.2-1.5cm - Usage: Compatible with double caster types Thank you for looking.