Type 304 stainless steel with one-piece seamless construction. Bright-polished finish. Chrome plated plastic spindles hold rolls up to 5-1/8 in Dia (1500 sheets). Double roll model measures 12-5/16 in W x 6-1/8 in H. Mounting: clamps for securing to stud walls or countertop aprons. Rough Wall Openings: 11 3/4 in W x 3-1/4 in D x 5-1/4 in H.