● This is a neck joint that allows you to attach a DD head to an Obitsu 50 body or a VMF50 body. It is a handmade product. ● It is convenient because it makes it easier to remove the head when changing clothes. You can install it with basically no modification, just by replacing the existing joint. ● The product is the one in the first photo. Also, the one in the photo is a sample, so please understand that there may be slight differences from the actual product. ● Because it is a handmade product, there may be some rough parts. Matching has been done, but it may be loose or tight depending on individual differences. Also, please understand that we cannot be held responsible for any damage caused by joint replacement before purchasing.