With just one of these, you can attach any doll head to a DD series body! It's the 'Universal Neck Connection Part'! ^o^ Pyo! It's compatible with a wide range of heads, from DDH series option heads to cast dolls like SD, Obitsu, PARABOX, Angel Philia, and overseas heads such as imomodoll and Tinyfox, Pyo! [The following sizes are currently in stock, Pyo!] 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 purchase, Pyo. MDDf3 size, which was out of stock, is now back in stock!! Also, if you want to attach a head other than DD to a DD body, using thick Kips will help fill the hole and make it convenient. We've 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's now included as a new product. Our shop, Hiyoko Tsuhan, has obtained copyright permission from the creator, so please rest assured. Furthermore, the parts on top of the spring, specially provided by Hiyoko Tsuhan, are limited edition items exclusively made for our shop. 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 axis 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; if there are fewer places to grip, it may be difficult to set it securely). ● You can arrange a wide variety of poses, such as looking up, looking down, and tilting the head, expanding the range of poses even for heads other than DDH. [Caution] Do not move it forcefully, as excessive force can cause the parts to break. [Confirmed Heads] VOLKS cast doll heads (SD.SDM), Obitsu heads, imomodoll, Tinyfox, 真实末日, ZAZ不困, other cast dolls and dealer heads, etc.