AWC Wood Crafts Presents Acupressure Wooden Ball Hand Roller Palm MassagerAcupressure Tools for Body StressStress Buster For special points of your Hands Foot and Body. Roll in your hands for 5 to 10 minutes daily. Best for middle part of palm & finger relaxation. INDICATIONS: Stimulates acupressure points activates blood circulation tiredness freshness effective in shoulder pain & total health. This is in pyramidal ball shape. hence it is known as energy-ball.