Krowne Metal 28-158S Adjustable Height Casters feature a 3/4"-10 threaded stem for easy installation. These casters offer a height adjustment range from 6" to 7", allowing for versatile use. Each caster swivels for enhanced maneuverability and includes a locking mechanism for stability when needed. With a robust 3" diameter and a load capacity of 220 lbs per caster, they are designed to support heavy equipment. The grease-resistant material ensures durability and easy maintenance. This set includes four casters, making it ideal for various applications.