With just one of these, you can attach any doll head to a DD series body! It's the 'Universal Neck Joint Part' ^o^ Pee-yow! It can be used with DDH series option heads, cast dolls like SD, Obitsu, PARABOX, Angel Philia, and various overseas heads like imomodoll and Tinyfox, etc. 【The following items are currently in stock, pee-yow!】 We have MDDf3 size, DDf3 size, and MDD2.0 size in stock. Immediate purchase is okay, but please let us know your desired product size via message after your purchase, pee-yow. The MDDf3 size, which was out of stock, is now back in stock!! Also, if you want to attach a head other than a DD head to a DD body, using a thick Kips can be helpful to close the hole. We have just added thick Kips to our stock. As shown in the product image (the part in the center of the top row of the first image), it has been newly added as a product. Our shop, Hiyoko Tsuhan, has obtained copyright permission from the creator, so please rest assured. In addition, the parts on top of the spring that Hiyoko Tsuhan specially offers are our custom-made, limited-edition products. The shop manager is a self-proclaimed Hiyoko salaryman and works at a company during the day, so please understand that replies may be delayed. 【Sizes】 MDD → MDD DDP → MDD DD → DD DDS.DDdy.DDBS.DDB → DD 【Features】 ● With just one, you can attach almost any head to a DD body without changing the neck joint! ^o^ ● The shaft is thin and made of sturdy material, so there's no need to worry about cracks. ● It hardly wobbles (depending on the shape, we cannot guarantee 100% secure fixation; it may be difficult to set it securely if there are fewer places to grip). ● You can arrange a variety of poses, such as looking up, looking down, tilting the head, etc., and the range of poses expands even for heads other than DDH. 【Caution】 Please do not force it to move. Excessive force can cause the parts to break. 【Heads that have been confirmed to work】 VOLKS cast doll heads (SD.SDM), Obitsu heads, imomodoll, Tinyfox, 真实末日, ZAZ不困, and other cast dolls and dealer heads, etc.