Fully adjustable to achieve correct ride height; Enables Timbren SES kit to perform properly on lifted suspensions; Each spacer kit comes with two 1 inch and two ½ inch spacers, along with necessary hardware so you ; Works with Timbren SES kits DR1500DQ and DR1500DS; Able to adjust Timbren SES ride height up to 7” for DR1500DQ; Able to adjust Timbren SES ride height up to 7-5/8” for DR1500DS