Finger Training The Royal Putty
85 grams of material for hand and finger training. Here you can knead as much as you want in the soft mass of the specially developed rubber mass and significantly increase your finger strength. The finger training mass is available in different hardnesses, indicated by different colors as follows:
DeRoyal Putty is based on paraffin, making it non-toxic and safe to use. Depending on the hardness and level, the different hardnesses can be mixed together and a new in-between hardness can be formed.