StickerTalk 10in x 3in Yellow Back Off Bumper Humper Sticker Vinyl Funny Sign Decals by High quality vinyl stickers. Professionally made in the USA. Utilizes air release technology which allows you to smooth out most bubbles after installation. Printed with solvent based inks that are waterproof, scratch and UV resistant. Laminated for extra protection. Will provide years of life in outdoor environments. Backed by StickerTalk&#039;s 30 day 100% satisfaction guarantee.