With our foldon box S, your folding bike is with you wherever you go, perfectly and securely stored. This transport case, with highly durable polypropylene (PP) side walls and extremely rugged ABS plastic shells, protects valuable Brompton bikes, whether traveling or at home, and is very easy to maneuver with its four casters. Once the foldon box S is no longer needed, it can be practically and compactly folded down and stowed. The resulting reduction in volume of 70% means this transport case can fit just about anywhere.