Product Specifications and Precautions Artificial leather (smooth, enamel), glitter, 0.3 inch (8 mm) high resilience cushioning cup insole: artificial leather is characterized by the characteristics of the material, so please understand that the surface may peel or deteriorate after 2 to 3 years. The enamel material is easy to transfer from other objects and will not come off once applied. Please be careful when storing. Please note that the bijou may come off or chip if exposed to collision or strong impact. Be careful not to get glitter wet. Also, please note that there is a possibility of scratching on clothing such as pants. One shoe uses two shoelaces on the top and bottom. Cord length (same length both top and bottom): 8.5 - 9.3 inches (21.5 - 23.5 - 70 cm), 9.4 - 10.2 inches (24 - 26 cm),