For Caps Size: This opener is suitable for twist-off type Caps with size from diameter 0.8 to 3 inches. For consumers: It is the ideal assistant for who suffering with weak hand strength and rheumatoid arthritis , and suitable for weak hand, elderly, seniors, effortlessly open bottle and help you be more independent, no need for help from others. High reliability: As the only manufacturer of this product, during prototype stage, we introduced the advanced design and problem solving method-DOE (design of experiment), FMEA (Failure Mode and Effect Analysis), 5Why to find out the root cause and corrective action, by these design tools, we finally choose the high hard sharp teeth to solve the slipping issue, with this model, it easily and firmly grab lids of any metal, also include plastic lids, under great grab and leverage, you can easily open the lids. How to use Step 1: Place the opener on Caps of bottle. Step 2: Push the opener forward in horizontal. Step 3: lightly twist off Caps in anti-clockwise direction.

High Reliability and Durable Twist-off Type Bottle Opener- it is made with high-quality plastic and with metal teeth, do not worry wear away, never slip around lids when twist off Tops, during prototype stage, we introduced advanced design and problem solving method-DOE (design of experiment), FMEA (Failure Mode and Effect Analysis), 5Why to find out the root cause and corrective action, by these design tools, we finally produce this high reliable twist-off type opener. Pocket-Sized Bottle Opener—Design with compact, only occupy a little space in cabinets, and hang in kitchen everywhere, even fit into your pocket, travel everywhere with you. Twist off Various Types of Lids—Design in V shape, when open bottle, it automatically grab the lids whether the lids is small or big with size from diameter 0.8 to around 3 inches. Excellent Grab and Never Sliding around Caps—Design with sharp teeth made from supper hard metal to grab hold of any lid whether it's factory sealed, child proof, tamper proof, it firmly bites the tops which no matter made of stainless steel, tinplate or plastic, such as: water bottle, soda bottle, milk bottle, soft drink bottles, plastic Jug, sauce bottles, salad dressing bottles with twisting Cap. Effortless—Design in leverage: provide a little force produces one greater output force to twist off Caps, suitable for weak hands, seniors, the elderly or hand with arthritis, great helpful arthritis tools, and elderly aids, arthritis helpers.