Product details:

The Paper Towel Dispenser by San Jamar: Smart System Classic Towel Dispenser, with IQ Sensor, 11-3/4W x 9-1/4D x 16-1/2H, wall mount, with lock, holds (1) 8" wide roll; 8.5" diameter and 4" stub roll, touch-less, (3) selectable paper lengths and dispensing delays, Infinity System automatic transfer, replaceable drive module, self-adjusting sensing field, durable break-resistant plastic, requires 4 D-cell batteries or AC Adapter (not included), translucent arctic blue, CE.