I know D&D Farm and Ranch in Seguin, Tx has 4' ones and could probably get 5' ones if they make them. They have two styles, one with a metal peg (top part is just like the other ones) that goes in the ground and others that are all plastic. The metal ones are better here as we're pretty rocky, but I have seen them break (Thanks, Holly for having adventures in the middle of the night and flinging/dragging them and the rope that was on them from one end of the pasture to the other)
