4-Wheel Ab Roller with Smart App&Timer-Beginner Core Workout Kit with Knee Pad&Rebound Support Fitness equipment 4-wheel roller with elbow pad fitness roller 6-elbow support abdominal roller safer abdominal exercise

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Fitness roller, eighth generation four-wheel abdominal roller, wider wheels for larger time display, more durable, intelligent braking, automatic ejection, less likely to fall, equipped with phone holder, thickened and widened elbow support, fitness roller abdominal roller

Upgraded version: Supports 8 elbows, safer, suitable for professional fitness, improves performance, and can be easily installed in just four steps.

Material: thick steel pipe ABS+foam+stainless steel

Item weight: 2kg

Wheel width: 100mm+20mm (width)

Response distance: 0.5-2M