Value Pack: Package including 4 pairs red gel heel cups ( for Men's US size 7.5-12) Heel Pain Killer: Designed for those who have foot pain. plantar fasciitis. sore heel. heel pain. heal dry cracked heels. achilles tendinitis.provide supportive heel pain relief. Multi-Function: They are not only heel cups. but also can use as heel lift inserts. invisible height increase insole for leg length discrepancies. Superior Raw Materials: Made of High elastic. durable. heat-resistant. aging-resistant. non-toxic GEL material.more Soft and Comfortable. Just enjoying shopping. exercising. Easy to Use - these shoe heel stickers have self-adhesive backs; Peeling off the back cover. you can stick them on your shoes backs conveniently. Washable and Reusable: If they are not sticky enough after several days use or run into dirt. please wash them with warm water. let them dry. it will back strong sticky. and you can use them again. Wide Application - These heel cups fit for many shoes such as high-heels. leather shoes. flats. boots etc.