100pcs Elastic Black Heart Round Rope Cord Locks Ends Stopper Silicone Adjustable 

 Fastener Black

 Material: Silicone

 Color: Black

 Suitable for: elastic band, cord adjuster

 QTY: 100pcs

 Easily adjust the length of the elastics to suit kids

 Package:

100pcs Silicone Cord Locks

【Warm Tips】- There are small and big holes at two ends, you can refer our picture instruction to pass through the elastic.