(4) airmaxxx 2500 lbs Air Suspension Bags. 50ft – 3/8 DOT Air Hose. 4 – Brass 1/2″NPT X 3/8″ Tube Elbow Fittings. 3/8 Serrated Hex Mounting Bolts. Diameter 6″, Extended 9″, Closed 3.00. Two Top Mounting Holes Measure Approx 1-3/4 from Eye to Eye. Bottom has One Mounting Hole in Center. All Mounting Holes are 3/8-16 UNC.