First place the opener on the bottle then push down the opener along with the bottle finally Lose the opener, and pop the cap off from the bottle; This bottle opener is tiny, portable, and convenient. It is very suitable for camping, traveling, parties, or outdoor in summer to drink beer. This bottle opener also can be used as a wine bartender tool for a bar or restaurant. Compare to the traditional opener. This new version opener can open the cap quickly and easily about hundreds of bottles in a few minutes. It is a good helper for drinking beer, kitchen, bar, restaurant. Price for over 5,000PCS is sea shipment.