The Senso Hand Trainer – made in Germany - from the sports ball range "knobbed ball long" is used for strengthening fi ngers, hand and forearm muscles and improves blood circulation. It can therefore help in particular to avoid cold hands. The pleasant Senso knobs stimulate the self-perception and the ergonomic shape facilitates application. The Senso hand trainer can also be used for rolling exercises as massage tool. Simple and uncomplicated to use and hygienic for massage at home, in rehabilitation and physiotherapy. The knobbed ball with an ergonomic form..