The model SRM-1624 Mini Slab Roller from Shimpo, allows for slab work in a crampped situation. With a 16"x24" work surface, and the roller allowing for up to 1", you can do anything from tile work to shallow reliefs. Weighing in at 31lbs, it's easily moved from place to place, without a strain.
WARNING: This product can expose you to chemicals including Silica, crystalline (airborne particles of respirable size), which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.