(SEE AVAILABILITY ABOVE FOR ESTIMATED DELIVERY) - Weighted Pen Pen - Weighted Pen - A great therapeutic aid with exclusive "pencil grip" technology! This new, unique, perfectly balanced weighted pen reduces fatigue while increasing muscle strength. A weighted pen decreases hand tremors, improves legibility & prevents writers cramp. Weighs approximately 130ml Black Ink. - Rolyan products are internationally licenced & manufactured for home & clinical use. Most of their products offer a lifetime warranty.