Lock Laces, Lock Elastic Laces Elastic Laces with Lock 1)Thesestraightelasticshoelacesare40"inlength+/-2 inches. Theyprovideamorecomfortablethancurlyelasticshoelacesduetomoreevenpressure. 2)Thislaceisgreatforquickchangesbetweenevents.Theyexpandslightlywhenyouhopintotheshoesandreboundforasnugfit.Wheneveryouputpressureonyourshoes,theyalsoreboundandwon'tstretchandremainloosethewayacottonlacewill. 3)Theyaretoppedoffacordstopavailableineitherblackorcolorssotheycanbequicklyadjustedfordesiredpressureandtheywon'tslideoutofyourtopeyeletthewayacoiledlacewill. ( we also can imprint 1C text or logo on the lock stopper if you need) 4)Theselacesareexcellentforathleticuse.Justslidethecordstopdowntoprovidethedesiredpressureforrunning,tennis,soccerorwhatever. Theyarealsofantasticforpeoplethatcan'tbendtotieorbusyfolksthatjustwanttokickontheirshoesandgo! Regular Laces Colors: Solid Color: 1) Black, 2) White, 3) Red, 4) Orange, 5) Navy Blue, 6) Grey, 7) Neon Green, 8) Neon Yellow, 9)Neon Pink Multi Color: 1) White with black stripes 2) Black with white stripes 3) Yellow with black stripes, 4) Red with white stripes Locking system: 1) fastener / stopper 2) lock ends Regular color: black fastener/stopper + black lock end (wealso can makecolored fastener/stopper + lock ends to match colored laces if you need,thedyeing cost is us$ 50 per color) We have many kind of fastener/stopper +lock ends in different shapes and colors for your selection. Regular Packing: independent packing ( 1 pair laces + 2fasteners + 2 lock ends +1insert card + 1 polybag ) ( can be packed as requested ) Uses:Sport Shoes Children's Shoes Casual Shoes Laces for those with limited dexterity Instructions: Step 1: Lace shoes loosely. Thread both tips through center of lock. Step 2: Insert key ( tab up ) between laces. Key will click into place. Step 3: Tie knots approximately 3" from lock. Excess lace may be cut. Step 4: To tighten, pull laces apart. To loosen, pull key.