Add more flexibility and versatility to any Prior or current Rotoboss, Junior or Low Roller Rotary with this spring loaded heel wheel attachment. 

Install and use Video: https://www.youtube.com/watch?v=CyDu1r_E-PM&t=4s

 This spring loaded heel wheel gives you full control over your work and virtually eliminates walking and slipping by applying tension the the back of the object giving your rotary a firm grip while allowing for movement in instances where the object has imperfections.