1. The inner core is made of High-quality materials, and the interior is reinforced with a liner. The liner is divided into accessories, which provide good protection for the and are more convenient to use. 2. Metal push lock, opening and closing, more stable. 3. The hardware lock is not easy to rust and oxidize, the nails on both sides are stable and firm, the inner lining is soft and cotton, and the double-layer design effectively protects the instrument from bumps size: 23.2 x 20 x 7cm Material: PU+metal colour: black Package Contents: 1 x carrying case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.