Abstract: An excerise handweight for increasing strength and endurance of muscles used in playing guitars and other musical instruments including a two-layer garment having a weighted pouch on the backhand side thereof and a centrally located hole for inserting the thumb. This device is wrapped around the hand and fastened by hook and loop material or straps with buckles to securely but comfortably fit it around the musician's hand. The unique design of this device enables it to be used while the musician is playing the instrument since it does not interfere with the thumb and fingers when worn.