Saim Waterproof Plastic Electronic Project DIY Junction Box Enclosure Case 200mmx100mmx70mm Waterproof 26mm Hole 8 Cable Entries Junction Box Total Size: 200 x 100 x 70mm/ 7.9" x 3.9" x 2.8"(L*W*H); Internal Size: 200 x 100 x 60mm/ 7.9" x 3.9" x 2.4"(L*W*H) Hole Diameter: 26mm/ 1" Waterproof rate: Ip65 Great for electronic projects, power supply units, student projects, amplifiers, etc.