MATERIAL: made of good quality silicone with good stretchiness; The elastic shoe ties can bear amazing tension and adjust the tightness according to your footwear, conform to your foot to a flexible fit, provide suitable compression and support, reduce pressure points to let you feel better throughtout the day.PERFECT FOR EVERYONE: Cool Innovative Design,The ergonomic design of the no tie shoelaces fits most shoes sizes for both Kids and Adults,whether you are an athlete that practices high impact sports, mom who wants to end untied shoelaces, or simply can't or don't like tying shoelaces.especially fit for kids, senior parents or someone who has a hard time keeping his shoe laces tied.MAKE YOUR SHOES FASHION:With improved 16pcs of shoe laces in one pack,You can decide what color,size and how to decorate your shoes,add more fun,functional and fashionable addition to your footwear, make them look coolEASY TO INSTALL: Goodbye tie,turn your lace-ups into slip-ons,No need to bend down to tie your shoes once installed,Save time and effort for lacing and untying and re-adjusting tightness,you can change your shoes into different styles easily.so you can adjust the laces anytime and anywhere without having to remove them all,With white, black and multicolor pack, match well with your different shoes, such as board shoes, sneakers, sandals, casual shoes and so on.EASY TO CLEAN - The elastic shoe laces are flat, waterproof, soft, comfortable, durable and easy cleaning. When they get dirty, simply wipe them off with a wet cloth and they will look brand new