Dress up your iPhone 4 with an iPhone 4 TrimBumper case from At Random. Minimal, yes, Something engineered to offer just enough protection for a beautiful machine? Now you've got it!. Open in the front and back, the Trim Bumper case combines two materials: Impact resistant TPR to frame your devices edges and strong, clear polycarbonate plastic between those lines.Together they form a protective band. Its a layer that absorbs impacts with hard surfacecs, with less coming between you and your device. The Trim Bumper is minimal and protectif as it gets