1、This plastic power junction box is made of plastic, which is durable and practical, not easy to rust. 2、The plastic power junction box great for electronic projects, power supply units, student projects, amplifiers, etc. 3、This power junction box has passed many safety tests and is safe and reliable. 4、Small size, easy to carry and store, convenient to use and with good performance. 5、Solid construction design to protect against dust, corrosion. Features: 1.This plastic power junction box is made of plastic, which is durable and practical, not easy to rust. 2.The plastic power junction box great for electronic projects, power supply units, student projects, amplifiers, etc. 3.This power junction box has passed many safety tests and is safe and reliable. 4.Small size, easy to carry and store, convenient to use and with good performance. 5.Solid construction design to protect against dust, corrosion. Specification: - Material: Plastic - Color: Black - Outer dimension: Approx. 3.94* 2.36* 0.98inch/10*6* 2.5cm (Length*Width*Height) - Inner dimension: Approx. 3.78* 2.20* 0.91inch/ 9.6* 5.6* 2.3cm (Length*Width*Height) Note:  1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Package included: 1 x Plastic Instrument Case