Libra Trailer Leaf Spring Hanger Kit for Double Eye Springs Tandem Axle Suspension Fits 1-3/4" wide double eye springs. For 2,000 - 7,000 lb axles. Typically used on 3500 lb tandem axles. . Kit include: 2 x EQ-E1 equalizers, 6 x 3" tall hangers, 8 x shackle straps, 14 x 9/16"-18 x 3" long shackle bolts and locknuts These hanger kits are from our warehouse stock, which we wholesale to US trailer axle manufactures as OE parts