This is an adjustable tailpiece for cello. Material: Reinforced plastic, nylon Specifications: Built-in 4-string adjusters Weight: Approximately 65g *Tailpiece rope included Can be installed on 4/4 (full size) and 7/8 size cellos. Tax included, free shipping We are already offering this at a great price, so please refrain from requesting discounts. If you wish to purchase multiple items, please let us know in the comments section.