Yosoo 5 Pcs 100x60x25mm Plastic Cover Project Electronic Enclosure Instrument Case DIY Power Junction Box Outer dimension: Approx. 3.93 x 2.36 x 0.98 inches (Length*Width*Height) Inner dimension: Approx. 3.78 x 2.20 x 0.91 inches (Length*Width*Height) Material: Plastic, which is durable and practical Designed for indoor applications, great for electronic projects, power supply units, student projects, amplifiers, etc A set made up of 5 pcs, 12-month warranty