Dress My Craft - Paper Punch 3 In 1 Corner - Dress My Craft 3 in 1 corner punch is a great for scrapbookers. Use for paper, cardstock, stationery, invitations, thin foam sheets, thin plastic sheets and other craft projects. The measurements are on top of the punch. It cuts 4mm, 7mm, and 10mm corner rounds. The anti-slip mat keeps the punch from moving on a table top. Not recommended for handmade paper with fibers.