This junction box features good insulation percompatiblemance, flame retarding and anti electric shock design, which is safe to use. This junction box can be used to merge wires, which is a good accessory of electrical equipment. It is made of high-quality plastic and metal material. There are 5 sizes compatible you to choose from. This junction box is suitable compatible electric equipment. Item Name: Junction Box Material: Plastic, Metal Style: 1 in 10 Out, 1 in 12 Out, 1 in 14 Out, 1 in 16 Out, 1 in 20 Out Features: High Power, Reliable, Convenient Size Details: 1 in 10 Out, L: 13.55cm/5.33", W: 2.64cm/1.04", H: 3.55cm/1.4"(Approx.) 1 in 12 Out, L: 16.85cm/6.63", W: 2.64cm/1.04", H: 3.55cm/1.4"(Approx.) 1 in 14 Out, L: 16.85cm/6.63", W: 2.64cm/1.04", H: 3.55cm/1.4"(Approx.) 1 in 16 Out, L: 18.2cm/7.17", W: 2.64cm/1.04", H: 3.55cm/1.4"(Approx.) 1 in 20 Out, L: 23cm/9.06", W: 2.64cm/1.04", H: 3.55cm/1.4"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Junction Box