Size: 3 Inches at its widest point. Use on any clean smooth non porous surface. WILL NOT ADHERE TO SILICONE, FABRIC, BRICK, OR WOOD. SURFACE NEEDS TO BE NON-POROUS for best adhesion. NOTE: WATERMARK WILL NOT BE INCLUDED. IT IS ONLY FOR SECURITY PURPOSES. Made from durable Vinyl. Great for indoor or outdoor use. 100% Weather proof and scratch resistant. Easy to install... just peel & stick! Excess backing is included to provide ease of use. Great for pulling pranks on your friends and co-workers. Makes for a great prank or gag gift to put on your buddy's hard hat, tool box, laptop, water bottle, tablet, smart phone, locker, windows, bumpers, or helmets. The applications of these stickers / decals / labels are only limited to your imagination. Shipping:All items that can fit in an envelope are shipped via stamped standard mail with no tracking using the most economical method.