new silicone hollow bands *many different designs,or as your request *good for souvenir,promotion gifts *rohs silicone Promotion Party Silicone Hollow Band Description:1, material:100% silicone (food-grade, safe environmental protection)2, Size :150mm for children,180mm for girls,190mm for men.3, width:20-35mm4, thickness:2mm5, shape:aleatoric design all styles6, color:all colors, reference ...