They come in 4 different materials: matte vinyl, holo overlay, gloss overlay, and matte paper (basic sticker paper). None of them are waterproof. Size 4.5inx6.5in approx. Size 3x6.60in approx Notice that matte vinyl has more vibrant colors than standard matte paper. Keep that in mind. Materials: Unless specified otherwise, our stickers are not waterproof. Please note: Colors may vary slightly from monitor to monitor.