Revolutionary applied technology that works with the body's natural physiology to give you a comfortable & steady grip when writing, drawing & painting. The PENCIL GRIP works brilliantly on pens, pencils, paint brushes & hobby knives & is designed to be used by both right & left handed people. Designed by Dr Lois Provda (Certified Educational Therapist USA) RIGHT & LEFT HANDED. EASES ARTHRITIS FINGERS WITHOUT FATIGUE! WITHOUT PAIN! Can be used with pens, pencils, brushes & hobby knives with handles up to the same diameter as a normal pencil. Medium: 13