This portable 3-hole hole puncher fits standard 3-ring binders. The 10-inch built-in ruler is designed for quick measurements. The three-hole punch has built-in paper guides for organizing paper. They are perfect for scrapbooking, card making, confetti, invitations and all paper crafts and can be used , office and school. This portable three-hole hole punch can punch up to 3-5 sheets of paper at a time, which is perfect for teaching classes where handouts are distributed, you can punch holes in them immediately and put them on the loose leaf at of class Clamped. Great organizing tool! High-quality 3-hole hole punch is and not easy to break. Stainless steel punch heads provide clean, neat, precise holes. The 3-hole hole punch is portable yet durable. Perfect for college classes where professors hand out handouts because you can punch holes and place them in a binder right at of class. The 3-hole hole punch cuts -inch diameter round/round holes, which is the right size to fit most standard rings. Operated by consumers themselves. The hole punch with 2 holes is designed to install standard 3-binder clips. Adopt good shape design to help punching materials more labor-saving and more comfortable. Reduce mess and provide customers with a pleasant experience. There is an easy-to-clean removable chip tray so all paper punches fall into it and leave no scars. Material: plastic colour: As Shown Package Contents: 1 x 3 ring hole puncher for binder 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.