The 5mm black soft elastic cord is comfortable and washable, flexible and durable; <br>and the 100pcs nose wire with adhesive on one side are adhere easily and bend nicely. <br>The 109 yard black soft elastic cord and 100pcs nose bridge strips are a nice mask making set <br><br>The 5mm elastic band will retain it's elasticity when stretched in the range of allowable tensile and maintain the original shape when unstretched or after washing. <br><br> The 100pcs flexible nose strip is made of quality aluminum and one side is with adhesive, you can sew it in or stick it on mask, either way works well; <br>but we suggest that sew the nose wires in mask If making a reusable mask. Stick the strip inside the mask first, no slip and sew it more easily. <br><br>The soft elastic cord rope is good for projects which need to touch skin like ear loops, head loops, homemade mask. <br>and it’s a good homemade string for DIY crafts, costume sewing and knitting, like making button loops, hair scrunchies, bracelet etc. <br><br><b>Size: </b> 109 yard/ 328 feet/ 100m on a spool, 3/16 inch/ 5mm width (±0.3mm error) of measuring due to manual measurement) <br><br><b>Tips: </b> <br> Please allow a little error of measuring due to manual measurement <br>100% money back or new replacement directly if you are not satisfied with our products <br>Any question ,feel free to contact us please ,we are always here for you :)