These are self-adhesive heel grips or heel cushion pads designed to be placed inside the back of a shoe.
Purpose: They help prevent the heel from slipping out of the shoe (especially with high heels or slightly loose shoes), reduce friction to prevent blisters and rubbing, and provide cushioning for comfort.
Design: They are typically made of soft, padded material (like sponge, foam, or silicone) with a contour shape to fit the heel area of the shoe.
Usage: The image shows them being used in a high-heel pump and displays a set of four pads in different colors: nude/beige, olive green/khaki, pink, and black.