Composed of metal chain, black pearl, and silicone non-slip buckle Total length approximately = 29 inches / 73 cm Adjustable closure Unisex glasses mask 【Multifunctional】The white silicone non-slip buckle can be adjusted It can prevent your glasses from falling or being damaged and use it to fix the mask you are wearing [Practical] They can be not only eyeglass chains, but also fashionablemask chain necklace chains. 【Fashion】looks stylish and fashionable on girls and ladies.Different colors can match any clothing 【Gift】which is very suitable for best friends, daughters, nieces, granddaughters, mothers, grandmothers and sisters on birthdays, Mother's Day Mask eyeglass Lanyard Eyeglasses Necklace Sunglasses Glasses Chain Reading Eye Glass Retainer Cord Lanyard Accessory A - BIVZ84PDK