MA0009 non-slip elastic band
https://www.ywmingai.com/product/nonslip-elastic-band/ma0009-silicone-nonslip-elastic-band.html
There are two type for the non slip elastic bands, rubber weaving non slip elastic band and silicone elastic bands. The rubber elastic is use of its own rubber thread to achieve the function of non-slip, but the shortcomings is simple style.