This pet trolley with regulating screws can adjust working size, and foldable. Foldable & Adjustable working size Pet Trolley:1. Personalized design of the pet trolley.2. The pet trolley with regulating screws, can adjust working size (length and width). Minimal size is 78.3*56.3*19.5 cm , maximal size is 125*80*19.5 cm.3. The handle of the pet trolley also with regulating screw, can adjust ...