Product information：  

Brand Name: Four-wheel Abdominal Wheel
Product features: four wheels detachable
Roller inner ring: environmentally friendly engineering plastics
Bearing weight: 400KG
Roller outer ring: super soft PVC
Purpose: fitness / abdomen / chest expansion, etc.
Steel pipe: thick steel
Wheel diameter: front and rear wheels 6CM
Handle: soft foam grip cover
Applicable people: suitable for fitness enthusiasts