Honey-Can-Do SHFPOL2-B30 2-Pack Steel Shelving Support Poles, Black. Create the shelving unit that suits your unique space and storage needs. These steel support poles measure 1" diameter x 30" tall and are compatible with existing Honey-Can-Do shelving units or can be mixed and matched to our other components and accessories to create the shelving unit of your dreams. Sleek black powdercoat finish. Includes 2 caps and 2 adjustable leveler feet.