Automatic Sensor This unit has an automatic touch-free sensor. Simply place your hand under the sensor, and the dispenser will dispense a perfect amount of sanitizer right into your palm. Refillable Bottle The inner bottle is refillable so you do not need to continuously throw away and purchase sanitizer bags. Instead, simply fill this reservoir with any gel or liquid sanitizer and it will be ready to go. Perfect For Any Setting Place our Sanitizer Stand in any setting that you want to keep safe and germ-free. It looks good in offices, gyms, churches, religious sites, lobbies, schools, and anywhere else you can think of! Easy to Open Open the dispenser in seconds with the key that comes in the box. Just press down and it will be open, ready to refill, no hassle. 4 Size C Batteries Get a minimum of 30,000 pumps of sanitizer before you need to change out the batteries. Please use 4 size C batteries. Non-Spill Bottle Cap The refillable bottle is capped with a bottle cap so sanitizer will not spill or leak out. Note - The bottle cap may not keep the sanitizer inside the bottle if the unit is sideways or knocked over.