Unlike conventional pens that rely on the strength of you grip, the PenAgain's ergonomic index finder cradle takes advantage of the natural weight of the hand to generate the pressure needed to apply ink to paper. The PenAgain "Y" formation allows your hand to relax and guide it, rather than forcefully grip it, which reduces hand fatigue, making PenAgain ideal for those who spend much of their days writing as well as those suffering from carpal tunnel syndrome, calluses, repetitive stress injuries, hand tremors and arthritis. Soft rubber coating provides a comfy, tension-free writing experience. PenAgain Twist n Write Pencils are great fun pencil for children with a unique wishbone design that helps to teach children the correct way to hold a traditional pencil.  Product Features:Multiple Colours Available this one is blue Size 10.3cmErgonomic Grip, Ideal for all who have difficulty with a tripod grip, children and adults alikeEasy refill replacement