What's in the box:

Abdominal Roller Wheel with Knee Pad Home Gym Fitness Abdomen Muscle Training Exercise Equipment (Standard)

Features:
Foam handles allow for comfort and stability.
6.3" double large wheels for smooth rolling and stability.
Durable steel tube and plastic shell for strong bearing capacity.
Assemble and disassemble in seconds.
Comes with an anti-skid knee pad to provide a soft surface for your joints.
Compact and portable, great for home, office, gym, and travel.

Specifications:
Material: Steel + Plastic + Foam
Wheel Diameter: 16cm / 6.3in
Assembled Length: 35cm / 13.8in
Knee Pad: 34 * 16.5 * 0.7cm / 13.4 * 6.5 * 0.3in
Weight: Approx. 0.8kg / 1.8lb

Package List:
1 * Abdominal Roller
1 * Knee Pad