Providing weight to the hand is an effective way to reduce a tremor, or to provide deep sensory input to increase sensory awareness. The Handweights provide weight with maximum wrist and finger mobility, leaving the palm of the hand completely open. The weight is reversible and the glove can be worn on the back of either hand. Available in five sizes. Choose the size by measuring across the back of the child's hand at the knuckles - fingers straight and together.Extra small = 5.7cmSmall = 6.35 cmMedium = 7.62 cmLarge = 8.9 cmX-Large = 10cmAs a general indication, extra small = 2-5 years, small = 5-7, medium = 8+. Hand weights are sold individually.