Product details: Excellent choice f running shoes/tennis shoes/sneakers/boots... Perfect replacement shoelaces they have stretch a little. The stretch of the laces isnt too excessive thats perfect f running shoes/tennis shoes/sneakers/boots. The thickness is also perfect f most shoes as well. Please do not wry about the durability,they will wk out perfectly will be very durable they are even better than the iginals There are 3 Kinds of Lengths 7 Kinds of Cols are Available,This is Non-slip Half Round Shoelaces, Very Suitable f Shoes f Outdo Sptsman With Nice Pattern, Fashional The Half Round Shoelaces with Elastic Strong Pull Design,Fine Texture,Multi-line Tightly Woven Fashionable Non-slip ,It is Not Easy to Loose in Running All Kinds of Strenuous Spts; S pecification: Col: Black, White, Light Gray, Dark Gray, Pink, Red, Sky Blue Size: 60cm(23.62inches)/80cm(31.49inches)/100cm(39.37inches) What's In The Box: 2 Pair x Oval Shoes laces Packing: 2 Pair(4 Laces)(when you put quantity "1",means you will get 2 pair of shoelaces); Multi-line Tightly Woven Fashionable Non-slip ,It is Not Easy to Loose in Running All Kinds of Strenuous Spts; The oval athletic shoelaces f kids adults are ideal match of athletic shoes/running shoes/spt shoes/tennis shoes/sneakers/boots etc. The athletic shoe laces have 7 cols design many different lengths are available,texture fine The best way to find the length of running spt shoe laces oval is you need remove the current shoelace from the shoe boots,then measure it from tip to tip,this is the length f the new shoelace.