COMFORTABLE AND BREATHABLE: The heel of the sneaker is made of high quality Hsinchu fabric and built-in sponge. Soft and comfortable. The soft design helps reduce friction between the shoe and the foot, preventing foot pain and blisters caused by long-term walking. Say goodbye to foot problems: the heel protector is designed for people with sore feet or blisters. Features a 180° non-sensitive comfort fit and increased wear zone. Glue the insoles to your shoes to prevent rubbing or dropping your heels. The heel grip gives you the most comfortable experience and easily solves shoe problems. ADJUSTABLE SHOES: The package includes 4 pairs of 10 mm thick heel pads. And the sneaker's heel grip can be cut freely to fit different heel heights and shapes. EASY TO USE: The insole liner has a self-adhesive backing, the reinforced backing provides a better fit and a secure fit that won't hurt the shoe. It can be easily attached to the heel by peeling off the sticker and pressing down firmly. Wide Compatibility: Heel inserts fit slightly larger shoes, these heel pads are suitable for canvas, running shoes, boots, trainers, trainers, work shoes, leather shoes, etc. Not recommended for shoes with a lot of wool inside the shoes, such as fleece boots. Note: Data is manual measurement, please allow 1-51cm error , due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.