GBSELL Colourful Portable Mini Hard Round Earphone Case Headphone Bag Storage SD TF Cards Kits Holder (Black) Material:EVA Size:Thickness: approx. 3.3cm/ 1.30" , Diameter: approx. 8cm/ 3.14" Hard outer shell can protect your goods from external pressure and damage. Unique ball shape designed to custom fit your small electronic devices such as: Earphones, Memory Cards, USB Cable, U disk etc. It has a zipper to open and close, conveniently and easily