dumbbell stand. This is achieved by adjusting the number of plates that follow the handle when lifted, e.g. by turning a dial or moving a selector pin — rather than manually adding or removing plates. This makes it very easy to change the weight of the dumbbell between exercises, and the stand typically doubles as storage for the additional weights not being used for a particular exercise. There are different types of mechanism: Block type Dial type Glide type Twist type 2-in-1 dumbbell/barbell Named dumbbells Thomas Inch dumbbell, also known as "172" ( handle, weighs ) Millennium dumbbell ( handle, weighs ) Circus dumbbells: historically used in traveling circus acts, these dumbbells have exaggerated ends and wider handles, and just like normal dumbbells, come in various weights and sizes. See also Barbell Kettlebell Weights Weight lifting belt Pool dumbbell Bulgarian Bag References External links Weight training equipment