From TriggerPoint Performance Therapy, makers of the revolutionary GRID foam roller, comes the STK – a handheld, personal massage tool. The STK incorporates a variable surface design similar to the TriggerPoint GRID foam rollers. The GRID foam pattern helps to channel oxygen and blood flow to the muscles, which aids in preparation and recovery. The TriggerPoint STK also features innovative AcuGRIP handles, which, much like a massage therapist’s thumb, are uniquely designed to target specific areas and provide relief to the deep tissue. The STK can be used either seated or standing to roll through tight muscles and knots in soft tissue that can restrict movement and mobility. Available in two densities – regular and extra firm – the STK and STK X provide portable, on-the-go relief from muscular aches and pains. One year manufacturer’s warranty. 21 x 2.5 x 2.5 inches; Weight 1 lb.