This is the ribbon you need for your Webster XL 500 typewriter. 1/2" black nylon ribbon with eyelets on 2" diameter spools. Available in vibrant colors and can be made in nylon, cotton, or silk.

This is the ribbon you need for your Webster XL 747 typewriter. 1/2" black nylon ribbon with eyelets on 2" diameter spools. Available in vibrant colors and can be made in nylon, cotton, or silk.