PPLS Square and round Silver Stickers Protective Security "Seal and Protect" Tamper Evident 0.79"~0.39"2~1cm)) Qty: 400 pieces Tamper evident void pattern when removal is attempted.Therefore Cannot be Resealed. Secure, seal and protect boxes, cd, dvd, vhs, envelopes, computers When hologram label is be removed , the hologram layer will be teared. Thus, this label is available only once. Please don't use on the metal surface