ITEM NAME:2pcs Black Plastic Project Power Protector Case Junction Box 55*39*27mm FT Product Name Junction Box Mounted Type Surface Mounted Box External Size:55 x 39 x 27mm/2.2" x 1.6" x 1.1"(L*W*H) Box Internal Size:45 x 33 x 22mm/1.8" x 1.3" x 0.87"(L*W*H) Fixing Hole Diameter: 3mm/0.12" Fixing Hole Center Distance:161mm/2.4" Material:Plastic Color:Black Package: 2 x Junction Box Features: Surface Mounted, waterproof sealed plastic electrical enclosure switch Junction box. Better waterproof and Anti-corrosion performance; protect your instruments even under the adverse environment..Features: Surface Mounted, waterproof sealed plastic electrical enclosure switch Junction box. Box External Size:55 x 39 x 27mm/2.2" x 1.6" x 1.1"(L W H).