Easy to assemble and compact storage design; Easy 2 step assembly allows anyone to assemble it. 1. Attach the base firmly to the post. 2. Push firmly into the clip arm to the tip of the post. When not in use, the shaft and base can be removed for compact storage without having to worry about placing it. Highly versatile and suitable for a wide range of uses; Suitable for B2, B3, B4, A2, A3, A4 sizes, and can be adjusted to the appropriate material for a wide range of uses.