BAGS CASE 2 TENOR + ALTO TROMBONES Evolution III, Basic Finish in Black. Weight: 4,550 Kg. Manufactured with the following materials: Interior: Poliespan structure and high-density polyurethane foam. Upholstered with high quality foamed Textile. Exterior: Glossy finish fiberglass structure. YKK zip closure. It incorporates two handles with a natural leather handle and a third handle in a vertical position. Description: This case is designed for a tenor trombone and an alto trombone, both with or without a transposer. This model has a central protective separator between both instruments. Includes two pockets for mouthpieces and accessories. The case has two hangers fixed to the structure that have been ergonomically designed to carry it comfortably as a backpack, facilitating its transport by bike / motorcycle. On the outside there is a sheet music bag attached with capacity for a tablet / laptop. Instrument compatibility: This model can be used for tenor trombones that have a maximum bell diameter of 22.5 cm. and alto trombones with a bell less than 18.5 cm in diameter. of the most recognized brands worldwide (Bach, B&S, Conn, Edwards, Jupiter, Kuhnl & Hoyer, Shires, Voigt, Yamaha, ect ...),