Weigh Safe WS4-2, 4" Drop Hitch w/ 2" Shank/Shaft, Adjustable Aluminum Trailer Hitch & Ball Mount w/Built-in Scale, 2 Stainless Steel Balls (2" & 2-5/16") and a Double-pin Key Lock

Helps Prevent Trailer Sway: Only 4" trailer hitch ball mount that accurately measures tongue weight. Through Patented Technology, Weigh Safe Hitches include built-in scales that allow you to safely load and tow any trailer 4" Adjustable Ball Mount: 4†drop hitch & 5" rise hitch, adjusts in 1" increments so you get the perfect fit for any trailer height - Secured using Anti-Theft Locking Design to protect your drop hitch Heavy-duty Towing Capacity: Made of 17 lbs of Aircraft Grade Aluminum & Stainless steel, with an industry leading towing capacity (GTW) of 12,500 lbs. Weigh Safe hitch is as tough as they come Includes Two Corrosion Resistant Stainless Steel Hitch Balls: Switch from a 2" tow ball to 2-5/16" tow ball in seconds. High-Strength Steel provides strength and corrosion resistance for your hitch Trailer Hitches A: Heavy duty aluminum hitch w/ built-in tongue weight gauge for safe towing (Lifetime Gauge Warranty Included), 2 stainless steel tow balls, dual pin lock, & dust lock cover