Heys Fvt USA 21 Inches, White Made of a lightweight material composition with a zipper-released expansion system allowing for an extra 20% in packing capacity Features a fully-lined interior with zippered divider, buckled compression straps and zippered pockets Lightweight aluminum push-button telescopic handle system with multi-stage locking heights 360 degree spinner wheels allow for effortless motion in different terrains 21x14x9