Sit cross-legged on the floor and imagine you are in a box. Holding your weights so your palms are facing down, extend your arms and lift them, imagining you are lifting them to the top corners of the box in front of you.
Bring your arms down so they are reaching for the bottom corners of the box.
Keeping your arms at the same level, shift them so they are behind you, reaching for the bottom corners of the box.
From there, lift up your arms so they are behind and above you, reaching for the top corners of the box.
Return to starting position. This completes one rep; do 10 reps.