This is level 3 of the H-Tunnel.
The Runner is the best character for this level because it requires lots of short jumps. If you get stuck on a conveyor, then it doesn't matter too much, but you should try to touch the regular tiles as much as you can.
The Skater also works. Just find some forward conveyors and do big, long, jumps. Jump to the right when you start, then go forward, and try to avoid slow conveyors. Jump on the forward conveyor, then do two big and long jumps. The jump after that will complete the level.