Feature:Fits King 3b like a charm.A mid-level price for a top-level Trombone.Sturdy fiberglass shell to take a decent beating. Foam pads can be moved around to 'customize' the fit.Slide storage on upper lid. 2 accessory compartments on lower lid.The CRF1020TB case is designed for most regutar Bb tenor trombone, include F-trigger and straight style.It can protect your trombone very well by the extremely strong fiberglass exterior and the all around thick padding inside. There is extra padding on the bottom for bell protection.Dimension:The inside dimensions:Length: 31.5"Width: 10.6"Depth (for bell): 10.4"The outside dimensions:Length: 38.2"Width: 12"Height: 11.8"The big accessory compartment:12.5 x 7x7 (cm);4.9x 2.8x 2.8 (in)The small accessory compartment:10.5 x 7.5 x 7 (cm);4.1x 3x 2.8 (in)The trombone case weight: 9.5 lbThe package include:Crossrock CRF1020TB fiberglass trombone case x 1Removable padding x 2Backpack straps x 2Key x 1Company:Cross rock Case been making instrument cases for 20 years with innovative products designed to protect your instrument. We offer a wide range of products with a variety of available sizes, materials and protection levels for all types of instruments. The “Cross” in Cross rock comes from where music reaches deep into our hearts and crosses into love. It’s where music touches our souls. “Cross” reflects Cross rock's strong emotional commitment to ensure their product designs protect the musicians’ instruments so that they can always play music that moves us. Cross rock Case for your next adventure, the brand you can trust to protect your instrument for life.