The Abster (Yellow). Abster System special offer available at theabster.com. Includes 7 abster cookies and abster meal plan e-book. The Abster is an exercise apparatus that is specially designed to target all areas of the abdomen to give you 8 pack abs! It can also work arms, obliques, shoulders, legs, and the back. Light in weight and small in size, the Abster can be used anywhere, home, office hotel room, where ever you go.