EFFECTIVE - Effectively prevents heel from wearing caused due to frequent braking while driving, a must have accessory for all drivers who appreciate beautiful look of their shoes. .CONVENIENT - Simple design, Reusable driving shoe protector with dancer buckle and elastic rope, easy to put on within 3 seconds. .WIDTH OF BOTTOM - It is approx 7.5cm (3 inch), but pls allow a little error (Max 0.5cm) in the handmade. .COMPATIBLE - Unisex design, Perfect for men or women, and suitable for most flats, or wedges not higher than 5cm. .COMFORTABLE - Super soft plush lining, high quality abrasion resistant fabric material of surface. Very soft and wear proof, not harm your valuable shoes.Durable and no smell. .