Description: brand new and high quality. Feature: Plastic body, copper rod, the inner upper pulley is the bearing and the inside lower pulley is steel ball, durable and anti-slip. Dual top wheels and single below wheel design, increase the stability, good performance, practical and useful. Three size to choose to meet your various needs. It is suitable for 4-6mm thickness glass to use. Good and excellent accessories and kit for home bathroom use. It is suitable to use in shower room, partition sliding door, sliding door, etc. Specifications: Item Type: Shower Door Rollers Material: ABS+Nylon+Steel Size: Pulley Diameter: 23mm/0.9in, 25mm/0.98in, 27mm/1.06in(Optional) Color: Light Grey+White+Black Application: Shower room and bathroom accessories Quantity: 8pcs/set Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 8 x Shower Door Rollers