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This Pommel (the part on the oposite end of the handle from the blade) is made to connect with the other modular lightsaber pieces that you will find in my shop. This part, like my other modular lightsaber parts is sized to accept a small flashlight inside like the one found here: https://www.harborfreight.com/3-12-in-Mini-Flashlight-69111.html
This Pommel is modeled after that of Obi-Wan Kenobi. It's not a copy but some of the same design elements are there.