Skate Rail , Rollerblading , 5ft' segments can be placed together , P Rail PVC | eBay
Amazon.com: Madd Gear 99" Long Flat Bar Skate Rail – Heavy Duty Durable Round Skateboard Pro Scooter or Inline Skate - Adjustable Height - Smooth Easy Sliding Assembly & Great for Beginners
Turn anywhere into a skate park! Here's how to build a portable PVC rail. - Rolla Skate Club