This wall mounted pump bottle holder is designed to hold soap, shampoo, lotion, etc., in any bottle with a maximum top diameter of 24.5mm, including the bottle thread. It fits perfectly with these cheap 10 oz pump bottles from Amazon: 10 oz Pump Bottle Plastic Pump Lotion Dispenser Empty Bottle . It can be stuck to your bathroom wall or mirror using waterproof 3M tape after surface preparation with IPA cleaner.