Provided are wheeled containers having a handle assembly that is configured for providing support to an assembly of containers when in rest position and for permitting locomoting of the assembly upon demand.

A throw caddy with a main body, wherein the main body has a first side surface, a second side surface, a front surface, a back surface, a top surface, and a bottom surface that oppose each other. A collapsible top portion is attached to the top surface of the main body. A removable tripod chair connected to the main body, Wheels rotatably coupled to one or more axles connected to the main body. A plurality of handles are attached to the main body and the removable tripod chair. Discus case pockets attached to the first and second side surfaces of the main body. A notebook pocket is attached to the second side surface of the main body. Adjustable legs located at the bottom surface of the main body. A large, zippered pocket attached to the front surface of the main body contains removable containers for organizing items.

Material handling devices are disclosed. Specifically disclosed is a hand truck latch for a convertible hand truck that provides a simpler mechanism which is less prone to malfunctioning; visually conveys to a user of the material handling devices whether the handle mechanism is locked or unlocked; and is less prone to accidental unlocking.

A portable shopping cart capable of serving as a seat includes a body part and a cloth pocket part. The body part is provided with a seat part. The body part includes a bottom supporting frame, a column supporting frame, a handle and wheels. A rotating positioning mechanism is arranged between the bottom supporting frame and the column supporting frame, and the rotating positioning mechanism is used for realizing rotation and support of the bottom supporting frame. The portable shopping cart realizes the functions of both a shopping cart and a seat, and can be transformed into a seat anytime and anywhere, and the handle can serve as the back of a chair, with high comfort. When not in use, the shopping cart can be folded for storage, so as to reduce the space of storage and transportation.