Release and relieve small muscle aches and pains with the GRID STK® multi-functional massage tool. AcuGRIP® handles provide better control of pressure and a more comfortable massage. Size (L x H): 21" x 2" Weight: 1LB Grid pattern feels like a massage therapist's hand AcuGRIP® handle targets more precisely Water-resistant Sweat-proof and easy to clean Warranty: 90 Days