Type 304 stainless steel with one-piece seamless construction. Bright-polished finish. Chrome-plated plastic spindles hold rolls up to 5 1⁄8" (130mm) diameter (1500 sheets). Double roll model measures 12 5⁄16" W x 6 1⁄8" H (315 x 155mm). Mounting: clamps for securing to stud walls or countertop aprons. Rough Wall Openings: 11 3/4" W x 5 1⁄4" H x 3 3⁄8" min. depth (300 x 135 x 85mm). With stainless steel hoods.