When you are properly activating your core muscles, your waist narrows. The CAB (Core Awareness Belt) will then loosen. Also, the low back is curved when you are in good spinal posture – the Core Awareness Belt is not noticeable. If you slump into bad posture, the soft spikes will remind you to activate your core.
By using the Telme Pressure Buzzer you get an audible alert reminding you to activate your Core muscles by standing tall.