mcworld2011 Store Loud Pipes Save Lives Patch Stick On, Peel and Stick Or Sew OnSize is 4 imches by 1.7 inchesIts a Peel and Stick Backing as shown in Picture, it sticks good on leather but we recomend if you sew it on it will seal the deal.picture is showing how the white backing paper peels off like a sticker and back is sticky When you Peel the Backing Please make sure to take just the white paper off not the whole adhesive backing..just need nails to take thin white backing off as shown in picturewith peel and stick option you can stick on jacket or vest where ever you want it and it will stickbut its always better to sew it if you want it permanentWe ship with USPS Tracking number so shipping cost me 1.99 i give free shipping to customers but just you know for this price it is great deal Froo www.froo.com | Froo Cross Sell, Free Cross Sell, Cross promote, eCRATER Marketing, eCRATER listing Apps, eCRATER Apps, eCRATER Application