Tonareli Fiberglass Cello Cases are made using a mold and fiberglass sheets, which are coated with thermal resin. Once sealed, the mold hardens the fiberglass into a strong, lightweight, and durable case that provides excellent thermal insulation. Your instrument is protected from inclement weather and sudden temperature changes when the case is closed and sealed. The case has been designed to include every last detail, such as two bow holders, an accessory pouch for rosin, strings, mutes, and your cleaning cloth. It also comes with two shoulder straps, a removable pull strap, and wheels for convenient transportation.