Approximately 4cm to approximately 6cm - 6cm- - 5.5cm- - 5cm- - 4.7cm- - 4.5cm - - 4cm- 1 set contains 12 pieces (6 pieces per foot) Please refrain from price negotiations. The packaging may be creased or wrinkled. The packaging bag may open. Please understand. #PurpleShoelaces #PurpleFashionItems Even adults can use them if their shoe size is small. I was able to use them with 23cm sneakers. It's not absolute as it depends on the design. Please understand. I'm using rainbow-colored ones for kids on 23cm sneakers, and people always say they're cute when they see them for the first time, so using multiple colors is also recommended! The colors used may vary depending on the number of holes and size. Please understand.