Stickers that are nearly impossible to remove. FLUX Eggshells Stickers are made of ultra destructible vinyl which causes the stickers to break into small pieces if you try to poke or scrape it off. Perfect for making tags or small pieces on. FLUX Eggshell Stickers come in 50 packs and the stickers measure 7.4 x 10.5 cm (approx. 2,9 x 4,1 inch) in size. Works on pretty much any surface and is perfect both outdoors and indoors.