ULSA endpin socket and 10mm carbon fiber endpin. I'm selling these because I purchased a different socket and endpin. The socket is ebony. Made by ULSA, which is used worldwide, so the sound is excellent. The ebony socket provides a clear sound, and the carbon fiber endpin makes it easier to move your right hand. Overall, it's recommended for those who want to make their right hand more comfortable and don't want a boomy sound. The 10mm endpin transmits vibrations to the floor more effectively than an 8mm one, resulting in better resonance. The endpin is new, and the socket has been used for several years, but it's a part you wouldn't normally replace unless there's a specific reason, so it's still perfectly usable. The retail price is around 40,000 yen. I will wrap it in cushioning material for shipping.