Great for card making and paper crafting! This corner punch can be cut into intricate shapes or pinched into photos. Product Dimensions (W x H x D): 2.9 x 3.3 x 2.0 inches (74 x 84 x 51 mm); Exterior Dimensions (W x H x D): 3.0 x 4.3 x 2.0 inches (75 x 110 x 51 mm); Suitable paper thickness: approx. 2 sheets of copy paper punch. The paper is about 2 sheets of copy paper. The thickness of a sheet of copy paper may not be able to pull out cleanly. When removing thin paper, simply stack 2 or 3 sheets of paper and remove them with a moderate thickness. If the paper thickness is not appropriate, the blade may not return to its original shape. In that case, turn the main unit inside out and push the blade back with a screwdriver. Also, before next use, please make sure to remove the remaining paper from the punch with a tweezer. Oil is used as a blade smoother. Before using, try out several times and remove before use. (Oil is volatile, so it will disappear after a period of time. )