A kiss-cut provides you with the ultimate flexibility for implementing your vision—this method cuts the sticker into any shape you desire, while leaving the back intact so that it can be smoothly peeled off the page. .: Material: 100% vinyl with 3M glue .: Comes in 4 sizes .: White or transparent .: Grey adhesive left side for white stickers .: Only PNG design format supported .: For indoor use (not waterproof)