Thank you very much for seeing it. I made it by welding the chain. As it has an adjuster, it eliminates rattling. This seat is made of synthetic leather. [Size] Height 47cm(18.5 inches) Seat surface Φ26cm(10.2 inches) [Color] Matte black Since all of them are by hand, there may be some dimensional errors, coating unevenness, scratches, etcPlease understand and consider purchasing. Payment is PayPal only. Please be aware that I can answer questions, but I can only understand Japanese, so…