You are looking at our 26″ round base. This is the standard base option for our Rifle Dueling Tree, Phoenix Plate Rack, Goliath 2.0, and our Animal Targets. It is larger than our 20″ base and will therefore offer a more stable footprint for larger target systems. Your order will include the two thumb screws necessary to tighten your upright or post into the base. There are 3/8″ Diameter holes around the entire circumference of the circle for staking if you find the need for added stability.