This attachment is designed to alleviate the awkwardness and difficulty experienced when switching to an acoustic guitar after becoming accustomed to a silent guitar. It also eliminates the pain caused by the frame of Yamaha's silent guitars digging into the chest. This is a one-piece product made by a 3D printer. Previously, we only sold this attachment for the SLG200N and 200NW models. However, we received feedback from customers who purchased it that it could also be used without any problems on the SLG200S, and that the coverage area that touches the body was also suitable for acoustic guitar playing form. Therefore, we will now support the SLG200S, SLG200N, and SLG200NW models. If you own an SLG100N or SLG130N, we have separate dedicated body attachments and guitar supports available for sale, so please purchase those instead. The attachment is designed to be easily installed on the guitar frame by simply inserting it from the rear, without any looseness, wobbling, or bending. To prevent it from falling off, we have molded it with rubber hooks so that it can be secured with two small rubber bands. We will include a generous supply of small rubber bands, but you can purchase additional ones at your local Lawson, DAISO, Don Quijote, or similar stores. We have selected and manufactured this product using a 3D printer material that is quite strong, so it will not break easily under normal use or even in slightly demanding situations. However, please do not subject it to sudden strong impacts, such as dropping the guitar when it is leaning against something. Also, it will begin to soften at temperatures exceeding 50°C, so please be careful not to expose it to such conditions. If you attempt to install it in a position that is misaligned with the curve of the frame, or if you handle it roughly during installation or removal, the guitar frame itself may be scratched. We are not responsible for any such damage. Please be aware of this before purchasing. We also sell guitar rests specifically designed for the same type of guitar. We offer discounts for bulk purchases. Please inquire.