Using the Bobrick B-29744 paper towel dispenser is easy. Just look for the intuitive LED light, which will show you where to activate the towel. To install it, make sure you have a wall opening with the right dimensions. You can power it either with an AC adapter or 4 Alkaline 'D' Cells, but remember the cells aren't included. Since February 2023, there's been a design change in the wall opening, but you can use the free retro - fit kit if needed. For maintenance, regularly clean the stainless - steel surface with a soft cloth to keep it looking good. Also, check the power source regularly to ensure the dispenser works properly.