The Sender Roller fits between and onto our 350 - 500 and 650 Ramps. You need 2 ramps the same size. You can use a straight and curved - straight to straight OR BEST curved to curved!
Roller does not come with ramps!
The Sender Roller allows riders to learn the skills involved in approaching and pumping on and off a feature to maintain speed and flow.
This product comes assembled due to the complexity of assembly.