Perfect Design: The punch tool appearance is made of aluminium alloy material, concave and convex pattern design, non-slip. The size is 7.1x0.71x0.71Inch and the weight is 0.17 lb. Featuring a three-section screw switch, the ultra- punch and dual nubber and draw enhancer can be turned on by unscrewing each section of the screw. The punch hole diameter is 0.31Inch (8mm). Multi-purpose: The punch tool set with a design. The punch creates a 0.31Inch (8mm) opening in your cap for a more flavorful draw. Double rubber inserted into of the C, easy to enjoy the C and prevent hot hands. The draw enhancer tool is the ideal solution for over-filling, over-tightening or blockage, producing perfect airflow and perfect suctio. High Quality Material: The punch tool set material is made of stainless steel, which is , hard and rust-proof. The shell material is made of aluminum, which is light in weight, high in strength, to wet chlorine , hard and not easy to break. Easy to Carry and Best Idea for Gift: The punch tool set has a compact shape, making it more convenient to carry and use. Ideal for important occasions such as business occasions, outdoor use, home use, etc.The punch tool set can be used as an ideal gift for boyfriends, husbands, fathers on anniversaries, Christmas, birthdays, Halloween, Father's Day, Thanksgiving Day, Valentine's Day or other ., Weight: 0.22266688462 pounds, Manufacturer: Prterver