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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 one of very few smooth and curved pieces. The addition of this Pommel will result in a singular silhouette for the finished lightsaber.