【Compatibility】: Perfect replacement shoe laces for stretch Water shoes, same material as the original shoelaces, and same shape as the original shoe buckle, which will make your shoe laces brand new again. 【2 Pairs in a Pack】:4 no tie shoelaces system, 4 round black elastic laces and an installation manual, 47 in length and can stretch up to 58 , one size fits all for kids and adults, can be trimmed to desired length. 【Ease To Use】:Lace locks use premium spring and made of stainless steel,with tieless system,never worry about tying your shoes again during any activity.Slip on/Slip off,these stretch shoe laces are quick and easy to put. 【Shoe Laces Tieless】:No tie laces with strong lock and speed shoestrings, easy to install,make sure putting on shoes much easier, perfect for a variety of outdoor activities such as running, tennis, athletic, casual, hiking, soccer, etc. 【After-sale Service】:We are so confident in our elastic shoe strings that we will replace them for free if they would ever break! Just leave us message and let us know the situation. ASIN B0CG388R9T Size 47Inch Brand NDTEZUGT Color 2 Pairs Black Unit Count 2 Pack Fabric Type Elastic Item Length 47 Inches materialfabric Nylon Number of Pieces 12 Age Range Description Adult Apparel Fabric Stretch High Stretch Product Care Instructions Machine Wash Apparel Fabric Weight Class Lightweight