Surface sandblasting, brushed processing. Light weight, durable, non-. Mold have long service life. Built-in grooves for holding circuit board Split aluminum shell, data board shell, MINI mobile power shell. Good for electronic projects, power supply units Size: . 150x105x55mm Mainly used in communications, medical, photoelectric, security, electronics, instrumentation and other industries. Good shielding, corrosion resistance, good appearance and easy. Surface treatment: sand blasting oxidation treatment. Colour: black Material: aluminum Package Contents: 1 * Aluminum PCB instrument box 8 * Screws 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.