Our Most Popular Back-to-Back Towel Bar Series Decorative Metal Washers Also Serve to Cover Any Defect in Hole in Glass 3/4" (19 mm) Diameter Heavy Brass Tubing (1.5 mil Thick) Custom Finishes Available The CRL BM Series Back-to-Back Tubular Handles with Metal Washers are constructed of 1.5 mil thick heavy brass tubing. These handles include decorative metal washers. Standard plastic washers are included to protect against glass-to-metal contact. Consists of one pull for each side of the door (back-to-back). The BM Series Pull Handles offer several stock finishes, with custom finishes available upon request by contacting CRL Technical Sales.