FEATURE 1Durable MaterialAdopting environmentally friendly zinc alloy integrated casting it is rust resistant and wearresistant It has passed 50000 bottle opening tests without deformation and its lifespan is more than three times longer than ordinary keychainsErgonomic designmore laborsaving easy to use solid bottle opener FEATURE 2Ergonomic bottle opening experience Specially optimized for European and American hand shapes the curved groove fits the angle of thumb force making bottle opening more effortless The matte anti slip coating prevents hand sweat from slipping making it easy for female users to useThe design of the curve is more consistent with the American hands bigger thickerheavyduty FEATURE 3Dual insurance against loss and detachmentPatent spring lock buckle design the buckle will not deviate and can be fixed with one hand operation to prevent accidental detachment of the key The buckle can support a weight of 10kg and can be used to attach backpacksbelts making outdoor activities more reassuring FEATURE 4Minimalist Practical Aesthetics Weighing only 176 ounces with a compact size of 295 inches and no redundant design it is suitable for gifts business outdoor and daily scenariosGreen and environmentfriendly kraft paper box packagingHealthy and reassuring gifts for menfriendFather and more FEATURE 5You are the best product designersWe will improve the product every yearAfter countless structural and design optimizations and changes the major changes have evolved to the fifth levelIf your suggestion is accepted it will appear in the new version