... good quality . 1.material :natural rubber ,the quality is good ,and the elastic is good .2.specifications:the diameter is 16mm ... .the thickness is 12-13mm.3.Usage:use for baby hair .4.we have many colors .red ,green ,yellow ,blue ,pink ... ,purple ,and so on ,5.the packaging is 250pcs/bag ,12bags/dz ... carton ,the cbm is 0.048/carton . rubber bands for hair