Why use Bump Dots? Bump Dots for the Blind and Visually Impaired are a great way to tactually mark buttons on appliances and electronics computer keyboards TVs and remotes copiers printers etc. Use them at home or in the office for marking a countless variety of items. Made of durable soft plastic these tactile dots have a self-adhesive backing for fast easy application on most hard clean surfaces (plastic metal etc.) Adhesive will not damage the product s surface.