SPECIFICATIONS OUTER DIAMETER: 1 27/32", 46 mm INNER DIAMETER: 11/32", 9 mm COLOR: BLACK MATERIAL: STEEL COATING: RUBBER WEIGHT: .08 lb PART REFERENCE INFO CECILWARE: 3587, 3587 (CRATHCO) CRATHCO: 3587 MODEL REFERENCE INFO CRATHCO MODELS: D15, D155, D25, D255, D35, D355, HD, WD CRATHCO DISPENSER MODELS: D15, D155, D25, D255, D35, D355, HD, WD CRATHCO DISPLAY DRINK DISPENSER MODELS: D-25-3, D-25-4, D-35-4