i have to agree with the horse stall mat.. 45 bucks at tractor supply.. minimal lumber for a frame. can add wheels to move if ya want to.. a whole lot easier to move than a round bale. I actually use mine as a target,I hang tennis balls from the top. some times my arrows will stick but the right wind could blow them off. broadheads do penetrate but MAYBE at most 1/2 sticking out other side shooting about 47 pounds