Package Including ?- 100Pieces adjustable silicone stopper for elastic band ( not including the elastic band ), black or white color for your choice. if do not know how to install it , please following the photo instruction for reference (the clip and needle is not included), or contact seller before complain to us , thank you. Wide Application?-Multi functional cord locks for drawstrings, round and flat elastic bands, sewing,lanyard, sportwear, clothing, decorating, crafting, beading, jewelry making, florist arranging, handmade DIY, gardening, or wrapping and more. Advantage?- Easily Adjustable ,The Cord Locks can easily adjust the length of the mask lanyard, Make the mask suitable for faces of various sizes for adults and children. Material?- Made of soft silicone material, light weight and durable, not easy to break, can be used for a long time. Size?- the length of silisone cord clocks is about 10mm / 0.39inch, there are 2 different hole in the end of it , the bigger hole is about 4mm / 0.16inch , the smaller hole is aboout 1.5mm / 0.06inch , which fit for 1/8 , 1/4 , 1/5 inch round or flat elatic cords for mask.

Date First Available: July 6, 2020. Country of Origin: China. Manufacturer: OCEANTREE. Department: Unisex Adult. Item Weight: 0.634 ounces. Best Sellers Rank: #28,317 in Arts, Crafts & Sewing. Customer Reviews: 4.5 4.5 out of 5 stars 5,832 ratings 4.5 out of 5 stars. : B08C771J5J. Item model number: 100. Product Dimensions: 0.28 x 0.16 x 0.16 inches.