The AS-1 was designed for the iPad 1 Apple case (or for use without a case), and also with the new iPad Air (with or without a case). It also works with thin cases on the iPad 2 & 3. It has a high-quality, hand-sewn leg strap and durable buckle and anodized black clips. Two attachable tilt pads are included to improve viewing and stability. The AS-1 uses a unique Velcro-fastening system that allows the user to switch between portrait or landscape views or remove iPad completely for viewing or stowing.