DW2180 Features: * Greenlaw arm * Used for conducting experiments * Fits into rod socket with 0.75" receiver * Made in USA Includes: * Includes 0.75" x 0.75" clamp, 0.75" x 36" upright and 0.75" x 18" crossbar Construction: * Solid machined aluminum construction Dimensions: * Overall dimensions: 36.75" H x 18" W x 0.75" D Warranty: * Manufacturer provides limited lifetime warranty