Metolius Grip Saver Plus
The Metolius Grip Saver Plus is a portable training tool for strengthening and flexibility, particularly during injury. Engineered by a doctor, the Metolius Grip Saver Plus helps climbers to work on strengthening and balance in the hand, wrist and forearm. Whether you are looking to work on flexibility and stability or you are recovering from finger, wrist or elbow injury, the Grip saver Plus puts the hand through a full range of motion to warm up and strengthen the muscles. Easy to take with you and intuitive to use, this is a great tool to keep to 'hand' at all times.
Grip saver Plus it's a nice product for a little finger warmup. It's not sufficient alone in my opinion and it's a bit too pricey but it's ok