Suit for scale 1:48 size ship model kit , and also can use on other size Length 27.41 mm Width 9 mm Thickness 0.06 mm 500 pcs / packet the copper back side have gum, which made it very easy to use. we also provide other scale and size , if you need, just leave me the message for what you need The 1: 48 scale single chip size is 27.4*9MM The 1: 75 scale single chip size is 18*6MM The 1: 96 scale single chip size is 14*4MM