Seeing these benches make me think of: Buttery-smooth grinding surface, trick over, use multiple to make an up-ledge or ramp, hippy jump, AND the super smooth blacktop riding surface. The Dynamic Schoolyard Bench has a slick plastic top for smooth grinds, and some foam tape to keep the obstacle in place. If you've seshed one of these in real life, you already know! If you haven't, you've got to pick one up.