All visual stress support products: coloured page overlays, reading rulers, visual stress software, tinted magnetic marker boards, tinted exercise books and reference books on visual stress.
For peer-reviewed research (March 2019) on the use of coloured overlays and reading rulers, please click on this link to Science Direct
Crossbow Clarity and quality. Our coloured overlays and reading rulers are made of virgin PET manufactured specially for Crossbow, and they have a special scratch-resistant coating.
BDA Assured was a programme run by the BDA from 2019-2021 which gave the “BDA Assured” badge to resources that were recognised by the BDA as being helpful to people with dyslexia. During that time, Crossbow reading rulers and coloured overlays were part of the scheme. This programme has now been discontinued, and will be replaced early in 2022 by a new page of useful resources.