This Bracket is Made of Silica Gel & the Speaker Mobile Phone Holder is Ultra-thin, Light & Small in Space. This Bracket Can Expand the Sound of Your Original Mobile Phone, Save the Power of Your Mobile Phone, & Facilitate Watching Videos, Movies, Etc. This Bracket Can be Customized in Various Colors to Meet Your Different Visual Needs. You Can Use This Bracket as a Holiday Gift, Which is Also a Good Choice. Minimum Quantity: 250