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. 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 3-in-1 design. The punch creates a 0.31Inch (8mm) opening in your cap compatible with 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 compatible with over-filling, over-tightening or blockage, producing perfect airflow and perfect suctio. Easy to Carry and Best Idea compatible with : The punch tool set has a compact shape, making it more convenient to carry and use. Ideal compatible with important occasions such as business occasions, outdoor use, home use, etc.The punch tool set can be used as an ideal compatible with boyfriends, husbands, fathers on anniversaries, Christmas, birthdays, Halloween, Father's Day, Thanksgiving Day, Valentine's Day or other . The punch tool set.make your every experience a joyful one! Colour:Silver Material:Metal Package Contents: 1 * Punch Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.