Pharmacy grade stickers, no BS. Super sticky adhesive. Thanks for your interest, a fellow Redditor (In order to keep prices low, items are mailed via USPS stamped envelope) Check out my other stickers: For vaginal use only & May cause Discoloration of Urine or Feces SUBSCRIBE TO PEWDIEPIE IF YOU WOULD LIKE A LARGER QUANTITY OF STICKERS, PLEASE VIEW MY OTHER LISTINGS. I am also adding new designs daily…. 🙂 USA BUYERS, PLEASE READ: ALL OF MY PACKAGES ARE SENT VIA STAMPED ENVELOPE, SO THERE WILL BE NO TRACKING NUMBER PROVIDED UNLESS YOU CHOOSE THE FIRST CLASS MAIL OPTION… (In my experience, first class shipping and stamped envelope deliver within deliver in the same time frame, just one has a tracking number and costs $3 more.) INTERNATIONAL BUYERS, PLEASE READ: ALL OF MY PACKAGES ARE SENT VIA STAMPED ENVELOPE, SO THERE WILL BE NO TRACKING NUMBER PROVIDED. (Unless you order in bulk) If you’d like to order a bunch of small orders let me know before hand so maybe I can help with shipping cost, otherwise ebay will charge you for each item you order.