BÓNG TẬP THĂNG BẰNG MERRITHEW_MINI STABILITY BALL™ - LOẠI NHỎ (MÀU XANH)

By bringing instability to your movements, you'll switch on your deep stabilizing muscles, firing up the core while demonstrating the gaps in your form.

You can also use your ball to roll out sore muscles or to support low back or neck during exercise. Compact and portable travel companion Non-toxic, hypoallergenic and phthalate-free.