Controlled Delivery Dual Roll (For Single Roll see Model 505) Product Materials UNIT: diecast zinc. Copper and nickel polished chrome-plated finish. Capacity Two standard core toilet tissue rolls through 5″ in diameter and 4½” wide. Operation Push button unlocks support arms to permit servicing of unit. Tension spring on stationary arm controls paper delivery. Installation Verify all rough-in dimensions prior to installation. Secure to wall with mounting screws (included) at holes provided. Guide Specification Surface-mounted toilet tissue dispenser shall be chrome-plated diecast zinc and hold two standard core toilet tissue rolls. Tension spring controls paper delivery. Overall dimensions: 10-1/2″W x 27 ⁄16″H x 4-1/4″D.