It USED to be made of wood, and was pretty crappy. I am not sure how long it has been changed now, but last time I was home (that is, back at Rock Rapids) all the old crappy, rotten ramps were gone. Now there is a mini ramp halfpipe on the north side. There is a banked wedge on the east edge of the square leading into a 3 sided pyramid leading into a 4 or 5 foot quarter pipe. In the southern half of the square is a 6 inch high flat rail, and 1 ft. and 2 ft. high narrow rails. I can not remember who the ramps are made by, but they have got that weatherproof black surface material stuff covering aluminum bars. It is a million times better than it used to be. I do not live there any more, but the last time I was there was within a few months ago.