This is an original, custom-made extension. The price has been increased due to specification changes. 《The screw part has been changed to aluminum, making it considerably stronger than previous models.》 This is an extension for MEZZ cues. * Some KONLLEN cues may be compatible with the MEZZ extension. It can be used without modification, simply by removing the butt rubber and attaching it. It can be attached in the same way as a MEZZ extender. MEZZ extenders can be attached. Also, by attaching a MEZZ bumper, various extensions can be attached. Length: Approximately 1 inch Weight: 28.1g ⚠️ Cue and genuine MEZZ butt rubber are not included. If you wish to purchase multiple items I have listed, please comment and I will discount the shipping cost. This is a handmade item, so please purchase if you are not concerned about minor details. If you have any questions, please comment. I will try to respond as quickly as possible, but please understand that I may be delayed due to work commitments.