________________ are single dumbbells that are held independently in each hand.

Single dumbbells, also known as individual dumbbells, are weights used in fitness training that are held independently in each hand. They come in a variety of sizes and materials, such as metal or rubber, and are typically used for strength training exercises to target specific muscle groups. Unlike a barbell, which requires both hands to hold, single dumbbells allow for greater range of motion and the ability to isolate muscles on each side of the body. They are commonly used in exercises like bicep curls, overhead presses, and lunges.

The term you are looking for is "dumbbells". Dumbbells are a type of weightlifting equipment that consists of two handheld weights, one in each hand. Unlike a barbell, where the weights are attached to a single bar, dumbbells are held independently in each hand. They are commonly used in strength training exercises to target specific muscles or perform a variety of exercises that engage multiple muscle groups. Dumbbells come in various sizes or weights, allowing users to choose the appropriate level of resistance for their fitness goals and abilities.