Sorry, I'm not sure whether the handle of the 16 long-handled umbrella can be disassembled. It depends on the specific umbrella design and manufacturing method. Different umbrellas may have different structures and disassembly methods.

Generally speaking, the handle of a long-handled umbrella consists of several parts, including an umbrella column, an umbrella handle and an umbrella head. If these parts are connected by plugging and unplugging, the umbrella handle may be detachable. However, if these parts are connected by welding or other non-detachable means, the umbrella handle cannot be disassembled.

If you want to determine whether the handle of your long-handled umbrella can be disassembled, I suggest you check the instruction manual of the umbrella or contact the manufacturer or seller for consultation.