HT430 BC & Backrest Unit HTB5B set. I purchased this for practicing guitar at home. After assembling it and playing the guitar, the minimum height of 485mm made it difficult to play. I think it would be fine for someone taller, but it didn't work for me, so I'm selling it. Purchased on February 27th. It's in like-new condition, as I only played the guitar once after setting it up. It's easy to attach the backrest unit to the Chair HT430B. Search for TAMA Backrest Unit HTB5B to find videos on how to install it. The seat material of this TAMA 1st Chair HT430 BC is quilted, not PVC, giving it a luxurious feel. Please refer to the photos. For shipping, I plan to pack everything in the original boxes, wrap them in bubble wrap, stack them, and then wrap the whole thing in more bubble wrap and secure it with PP bands. Also, when attaching the TAMA Backrest Unit HTB5B, you need to replace the screws with longer ones, which are included in the instruction manual bag. The foot covers in the photos will be removed before shipping (they are from a 100-yen shop). Both items were purchased on Amazon: HT430 BC was ¥17,262 and HTB5B was ¥10,314. I'm gradually lowering the price, but if it doesn't sell, I will list them separately. Thank you.