OZ-SL-44-A1-SSS Roller for Glass Door Roller Assembly Four fiber reinforced plastic rollers of 30mm diameter Stainless Steel Grade 304 glass holding point Height adjustable glass holding points (10mm) Secure grip for the door Self aligning suspension of door Roller configuration for even distribution of load Independently connected rollers to prevent damage to track and rollers Suitable for 10mm or 12mm glass Suitable for door weight 40kg.