These 5.5" tall height adapters are a must-have if youre planning to lift any light-duty truck or SUV with your MaxJax portable two-post lift. Get the most reach and achieve great versatility without sacrificing your lifting height. Tall height adapters are designed to be used with the lift pad assembly, frame cradle pads, and other stackable height adapters. Get the most from your MaxJax with the 5.5 inch tall height adapters!