Reizen Large Format Calculator Keyguard (#512)

This keyguard is for the Reizen Jumbo Talking Calculator #752975. 

Most users will prefer the 3/16" thickness. 1/4" thickness is good if you want deeper holes, requiring a more deliberate touch. 1/8" holes work best for someone who can type faster, but needs help touching only one key at a time.

This keyguard is available in several materials and is secured with Velcro fasteners (shown).