The 1SKB-iSF2U Studio Flyer is a powerhouse of innovative features packed into a compact, convenient carry-on size. Boasting a virtually indestructible injection molded shell that is both lighter, stronger, and less expensive than the previous 2U Studio Flyer, the 1SKB-iSF2U also features front and rear molded-in square rack rails pre-installed with cage nuts for an extra element of security and durability for sensitive equipment on the go. Improved quiet-glide wheels, an easy-to-operate pull handle.