Stand or sit with your feet hip-width apart, holding a water bottle with both hands.
Lift the bottle overhead with your arms fully extended.
Bend your elbows to slowly lower the bottle behind your head.
Straighten your arms back up to the starting position.
Pro Tip: Move slowly and controlled — the lowering phase is where the real toning happens.

5. Plank Shoulder Taps

This dynamic plank variation challenges your arms, core, and shoulders simultaneously — a powerhouse move for overall arm slimming and strengthening.

How to do it:

Start in a high plank (push-up position) with your hands directly under your shoulders.
Keeping your hips as still as possible, lift your right hand and tap your left shoulder.
Return it to the ground and repeat with the left hand tapping the right shoulder.
Alternate sides for 30–45 seconds.
Pro Tip: The key is keeping your hips from swaying side to side — the more stable you are, the more your arms work.

6. Inchworm with Shoulder Push

The inchworm is a full-body move that gives your arms an intense workout as they support your bodyweight through the movement.

How to do it: