This upgrade comes with two Meat Grinder attachments. This set does not include the Thrival Release Board or Travel Board, one of which is required to use these attachments.
ANGLED ATTACHMENT HEADS, YOU ARE YOUR OWN THERAPIST: The Meat Grinder attachment heads allow you to mimic the curved hand of a therapist using the gravitational pressure of your own body. When pointed inwards, the two attachment heads are adjustable from 2.25 to 8.6” peak-to-peak. The attachment heads can even be reversed to point outwards to attack muscle groups such as your iliacus. When turned outwards, the attachment heads are adjustable from 7.5 to 13.6” peak-to-peak. Covered by D980998 patent.