Specifications include, but are not limited to: 3.1.1 Roll Off Trailer with (2) two Boxes 3.1.1.1 Trailer must be black in color. 3.1.1.2 Trailer must be 16,000 G.V.W.R. 3.1.1.3 Trailer must have adjustable Adjustable 2 5/16” Bumper pull ball Bulldog Coupler with Safety Chains. 3.1.1.4 Trailer must have 2 - Dexter E- Z lube Brake Axle (7,000 lb. ) or equivalent 6" Leaf Slipper Spring Suspension. 3.1.1.5 Trailer must be equipped with 4 - White Spoke Wheels with 235/80R16 Radial Tires (3,520 lb). 3.1.1.6 Trailer must include a spare tire mounted on trailer with matching wheel. 3.1.1.7 Trailer must include Electric Breakaway Kit w/ Charger. 3.1.1.8 Trailer must have Electric Trailer Brakes All-Weather Wiring Harness (7-way RV).