Yosoo 100x60x25mm Black Plastic Cover Project Electronic Enclosure Instrument Case DIY Power Junction Box, 5Pcs Material: Plastic, durable and practical Designed for indoor applications, Great for electronic projects, power supply units, student projects, amplifiers, etc Inner dimension: Approx. 3.78*2.20*0.91inch/9.6*5.6*2.3cm (Length*Width*Height) Outer dimension: Approx. 3.93*2.36*0.98inch/10*6*2.5cm (Length*Width*Height) The plastic electronics enclosure project boxes can not be used in water.The waterproof rating is to protect against dust, corrosion and SPLASHING Water