Description: 【Material】: The Beer bottle opener is made of high quality zinc alloy, which is sturdy and durable and is an ideal beer bottle opener. 【Creative Design】: Whistle with bottle opener, the whistle is loud and easy to blow, and can be used for game referees, sports, traffic control and other occasions. 【Easy to Use】: Keychain bottle opener is easy to use, perfect for professional bartenders or home use. It is also a practical gift for family and friends. 【Small and Lightweight】: 85mmx61mmx10mm/3.35inchx2.40inchx0.39inch, small in size, easy to carry, and can also be carried as a key chain. 【Widely Used】: Whistle bottle opener is suitable for homes, kitchens, bars, restaurants, parties, camping, competitions and other outdoor activities. Specification: Material : zinc alloy Size Chart: 8.5cmx6.1cmx1cm/3.35inchx2.40inchx0.39inch Package Includes: 1 Whistle with Bottle Opener(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.