These Gel Ball Hand Exercisers feel nice and squidgy in your hands (but only if you like touching jelly!). They come in lots of different colours for the various resistances (black – extra firm, orange – firm, green – medium, purple/blue – soft, pink – extra soft). After only a few squeezes our Spring Chicken tester felt as if the forearm, hands, and fingers were being exercised. They are also great for relieving stress!