Ventilation slots ensure optimum air circulation, metal grille door with practical closing system for quick opening and secure closing, including two plastic cups (only for sizes M, L, XL, XXL), rigid construction, heavy plastic, metal door lock, Side rods and extra durable surface, the mobile familiar home ideal for car, train, boat, plane and at home, set of castors consisting of two front wheels and two rear wheels for easy use and transport (only for sizes L, XL, XXL, XXXL), with practical carrying handle (only for sizes XS, S, M)