Allstar ALL56130 2.5" Wide x 5" Long x 1.00" High 9/16" Pin Diameter Extruded Aluminum Lowering Block Lowering block is 2.50 inch wide x 5.00 inch long x 1.00 inch high and has a 9/16 inch pin diameter Constructed from quality extruded aluminum Lowering blocks easily adjust ride height on leaf spring cars Also available in alternative sizes (sold separately) ranging from 1 inch high to 3 inch high in 1/2 inch increments Sold each