GREAT QUALITY: Made of plastic, this distribution box is durable and sturdy. Main Material: ABS; Main Color: Gray; Net Weight: 309g; Rating: IP65;Model: HT-5 Strong sturdy. MULTIFUNCTIONAL: This distribution box is designed for 18 ways circuit breaker, can be widely used. Outer Size: 120 x 160 x 92mm / 4.72" x 6.3" x 3.62" (L*W*H); Inner Size: 110 x 150 x 86mm / 4.33" x 5.91" x 3.39" (L*W*H) EASY TO INSTALL: This distribution box can be easily installed and very convenient to use, just need a few steps to mount it on your wall.