Made of ABS plastic, hard, and , can waterproof, UV-, not change color for a long time. Solar cable box used for all cable types 6mm to 12mm in Dia. It is an Perfect way for routing the cables while mounting solar panels on vehicles and boats, as well as other installations on buildings, garages, sheds . Easy to install with glue, Drill-free mounting, not damage the car roof or yacht deck. Name: Solar Double Cable Entry Gland Box Type: double cable entry gland Size: 11cm/4.33in x 9cm/3.54in x 4cm/1.57in (L x W x H) Special Features: Connecting Box Model Name: Wire Junction Box Model Name: Double Cable Entry Gland Fit 1: For Solar Project on RV For Fit2: Van Travel Trailer Boat Cabin Yacht Campervan Special function: WaterProof Fitment:(Just For Reference) For Solar Project on RV For Van Travel Trailer Boat Cabin Material:ABS colour:White Package Contents: 4 x Solar Panel Cable Holder Junction Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.