Robust 8-1/4" X 1" X 1-1/2" straight spindle made of steel, best suited for a 2000 lb trailer axle (2 x 1000 lb). Ideal for 2" outer diameter and 1-1/2" inner diameter round tube. Welding required.

1-5/8 inch diameter x 9 inches stainless steel tube protects documents and rubber caps provide a tight seal.Features:- Mounting bracket measures 5-3/4 inches high x 2-13/16 inches wide x 4 inches deep.- Ideal for tractor trailer applications