Single Hole Punch ① Perforated aperture: 6mm ② Reach paper depth: 0.47inch/12mm ③ Max paper thickness: 20 Pages ④ Place: Hotels, Schools, Restaurants, Office, Stores. ⑤ Size: 3.7 x 1.5 x 1 inches ⑥ Weight: 4.2 ounces ⑦ Material: Plastic and Steel Features: ① Precise Punching Hole: Alows to punch the hole location precisely with removing the bottom catcher. ② Perfect Sheet Punching Capacity: Tackles up to 20 sheets paper punch capacity. ③ Durable and Portable: Metal construction with plastic handle. Durable,and comfortable for repetitive use. ④ Multiple Functional Base Pad: Non-slip rubber base protects desk from scratching & quick and hassle-free paper waste disposal. ⑤ Wide Application: Ideal for punching through any kind of paper, chipboard, card-stock, thin plastic card, thin metal, craft paper, art project or other materials.