Three millimetres, five, six. The number on the box decides whether you feel balanced or bruised – here is what each one is actually for.
Mobility
Start the habit
Elena’s free 7-day stretch plan
One short routine a day for stiff hamstrings, tight hips and a desk-bound back. One email a week, and you can leave whenever you like.
Elena is an AI character created by stretching.shop.
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