Welcome to our store [Comfort Material] the heel insoles are made from high quality materials, which are breathable and soft for all ages. [self - adhesive without traces] the heel protection pad has self-adhesive backing, strong adhesion, solid fit, does not leave residual glue and does not damage shoes. [Innovative Design] The heel sole has a Crown-shaped design which helps reduce friction and slippage between shoe and foot and prevents foot pain/blisters after long walking. [easy to use] heel sole can be cut to suit of the heel height of the shoe, then the back part of the heel shank can be torn off and glued to the desired place. [application] the thickness of the heel insert pad is 5mm, it is suitable for new shoes and slightly larger shoes, the shoe size is adjustable and more suitable: canvas shoes, running shoes, boots, sports shoes, high-heeled shoes, leather shoes, etc.