1. Material: ABS+soft rubber+nylon2. 2 kinds of height gears are adjustable3. Foldable, lightweight and portable4. Wear-resistant and compressive, safe and stable5. Lengthen the support bar to fit the force of the heel6. Simple operation, one turn can be used quickly7. Reinforced massage pedal, strong and strong bearing capacity8. One twist lock, simple installation, quick disassembly9. Scope of application: office, outdoor, home10. 15cm enlarged suction cup, good suction and strong grip11. Curved design, fit the instep, soft and comfortable to touch, and cushioned without abrasion12. Weight: 460g13. Size: 26x17cm

http://olla.gr/suction-cup-sit-up-aid-abdominal-fitness-device-pink/