Puregear Accessories Puretek Roll-on Kit PureGear PureTek Roll-On Kit AF for iPad Air The ultimate in device protection made simple with the patented application tray and roller. Just snap it in and roll it on. Fastest error-free application tray ensures perfect alignment. Instant bubble-free appearance. Antibacterial: Prevents bacterial growth on screen shield + HD clear. HD Impact: Best in class impact protection.