Law checks out the Subrosa BMX Practice rail
“I'm a ledge skater, but have been wanting to get more comfortable on rails. The Subrosa Rail is a $225 portable practice rail you could bring with you wherever you go. It's designed for BMX, but at 18" tall and 8' long seems ideal for inline.
I purchased this rail and have no relationship with Subrosa. They probably have no idea I exist.” - Lawrence Ingraham