Touch-free electronic Tork Elevation Intuition dispenser features a choice of 2 dispensing modes. Towel remains inside cabinet until user activates the sensor. Adjustable towel length of 8" to 24" and a stub roll compartment combine to deliver more precise control of consumption. Batteries last up to 40 rolls on average with normal usage. Can be mounted directly to wall or within a recessed compartment. Numerous back-plate mounting slots fit most any pattern. Compatible with Bunzl paper towels Model No. 14100489 (SKU 600561) and Model No. 14100488 (SKU 600560). Uses 3 D batteries.