IP65 Waterproof: The project box is IP65 Waterproof certificated, can protect against dust, corrosion and splashing water, ensure electrical components dry and effective in harsh environments. Outer Size of electronic project box:11.42" x 8.27" x 3.94" (290 x 210 x 100 mm); Inner Size of electronic enclosure: 11.1" x 8.1" x 3.7"(281 x 205 x 93mm)(L*W*H), Outer Size of project enclosure:11.42" x 8.27" x 3.94" (290 x 210 x 100 mm); Inner Size of electronic enclosure: 11.1" x 8.1" x 3.7"(281 x 205 x 93mm)(L*W*H)- - (Allowable Error: ±2mm) High Quality Material: The electrical box is made of ABS material,screws are made of stainless steel.Solid construction junction box can protect your inner projects in indoor or outdoors. Versatile and Customizable Design: The electrical box allows for easy customization, drilling, and modification, Easy to shape openings for many items like meters, LCDs, sockets, LEDs, buttons and so on,Sturdy and t