Saim ABS Plastic Waterproof Electronic Project DIY Junction Box Enclosure Case 64mm x 58mm x 34mm Surface Mounted, waterproof sealed plastic electrical enclosure switch Junction box. Total size: 64 x 58 x 34mm/2.5" x 2.3" x 1.3"(L*W*H); Internal Size: 55 x 49 x 28mm/ 2.2" x 1.9" x 1.1"(L*W*H); Fixing Hole Diameter: 3.6mm/0.1" This junction box provides complete protection against dust and splash water, the Ingress Protection Rating is: IP65 Certain modification can be done according to your requirments; such as drilling, painting, punching, silk-screen printing and etc. Great for electronic projects, power supply units, student projects, amplifiers, etc.