Massage Gun

Percussion massager for the knots you can't reach. Hold it against a tight muscle and let the head do the work — quads after leg day, shoulders after a long drive, calves after a shift on your feet.

• Swappable heads — a broad one for big muscles, a narrower one for getting into a specific spot
• Speed settings — start low on tender areas, wind it up on the big stuff
• Cordless — recharges over USB, so it lives in a gym bag instead of next to a socket
• One-handed — reach your own shoulders and legs without needing someone else

Use it on muscle only. Keep it off bone, joints, the spine and the neck, and don't use it on an injury, a fresh bruise or anything swollen. It should feel like pressure, not pain — ease off if it doesn't. Check with a doctor first if you're pregnant or have a circulation condition.