Using this dispenser is a breeze. Simply insert a quarter (U.S. or Canadian) into the single-coin slot. Then press the push-button to select your desired product, which will be dispensed into the easy-access tray. If you change your mind, use the push-button coin return. If you insert a wrong coin (1¢, 5¢, 10¢), it will drop into the tray. When the dispenser is empty, the coin slot will be automatically blocked. For loading products, there's no need to deal with weights. Just open the two tumbler door locks (keyed like other Bobrick accessories) and fill it up. For management, use the separately-keyed coin box lock to access the coin box. You can easily convert the vending settings from 25¢ to 50¢, token or free. To maintain it, keep the stainless-steel surface clean with a soft cloth. For schools needing free menstrual products, order the free vend conversion kit (part No 3706-250), and for token vending, get the token vend conversion kit (part No 3706-166).