The dumbbell, a type of free weight, is a piece of equipment used in weight training. It is usually used individually or in pairs, with one in each hand.
A pair of adjustable dumbbells with 2 kg plates
Dumbbells (halteres) used in athletic games in ancient Greece; held at the National Archaeological Museum, Athens.
A woman is shown exercising with dumbbells on this Roman mosaic, c. 286–305 AD.
Selectorized dumbbells
Strength training, also known as weight training or resistance training, involves the performance of physical exercises that are designed to improve strength and endurance. It is often associated with the lifting of weights. It can also incorporate a variety of training techniques such as bodyweight exercises, isometrics, and plyometrics.
A gym environment where various forms of strength training are being practiced. Identified from left to right, the exercises are: overhead presses, battle ropes, planking, and kettlebell raises.
A dumbbell half-squat.