Dell Latitude 3340 Keyguard Keyboards and Accessories you can use Volksswitch's custom

you can use Volksswitch's custom keyguard designer to design one

It also fits some variations of this keyboard sold under different brand names on Amazon

and number exercises enhanced by clear images and audio feedback

It can be ordered with any number of openings from 1 to 20

almost unusable

Dell Latitude 3340 Keyguard Keyboards and Accessories you can use Volksswitch's customKeyguard for Dell Latitude 3340 laptop. May also fit other Dell Latitude and possibly some Inspiron laptops that use the same keyboard. Call if you're unsure. The default material is 3 16" clear acrylic. 1 8" high impact PMMA is available for users who require the openings to be shallower, but is not recommended, since it is more flexible and may become warped or dislodged. There are also a number of 1 4" thick materials available. No attachment