The Avenue Extendo Set is a long 5-stair gap with a step-up ramp on one side, and a rail in between those. With these 3 features on one obstacle you can use it as a gap, a ramp, a rail, or any combination of the 3 of them. The deck on top of the stairset is also very spacious so you have plenty of run-up and landing area for doing tricks up or down this.