RBX
-
RBX Fitness Ball with Anti-Burst Design for Balance and Core Fitness, 55cm (Hand Pump Included)
Make sure this fits by entering your model number.
Perfect for even the most rigorous and sustained workout, the RBX 55cm inflatable fitness ball provides a full-body workout for all fitness levels — from beginner to the most advanced.
A versatile workout tool, the fitness ball promotes stability and balance to strengthen and tone your abs, thighs, and lower back — improving your core strength, posture, coordination, and flexibility.