This UV sanitizer has convenient pull-out drawer and a powerful UV light inside. This creates a clean environment for your instruments. Leave them inside for 30-40 minutes to make sure the UV light has been able to sterilize the instruments. Remember UV light will only work where the light can touch and are not meant to clean or sterilize blood or tissue. Outside Dimensions: 15.5" L x 7.5" H x 9.5 D" W Inside Drawer: 12" L x 4.25" H x 8 D" W