Set of eight Single Shower Door Rollers (4 higher rollers and four backside rollers) Suitable for many shower enclosures, shower cabins and steam cabin enclosures Materials: Plastic, Nylon, 304 stainless-steel micro-bearing POM ABS brass axis Wheels approx. 25mm diameter x 6mm large Minimum Hole size in the glass: 10(can tournament 10) Designed to be used on 5- 6mm glass doors Direction :Swing Included within the Package: >8 Single Shower Door Rollers (4 larger rollers and four bottom rollers)