These are cheap and functional. These are much more "practical" in use then the hard plastic cover, which is a pain and always in the way. The only problem for "picky people" might be they don't attach. They are form fitted and you simply tape them in place around the edges. To begin with, you don't "need" a cover at all, unless you work with a really messy process or messy environment and want to protect the touch pad. Actually, most scales of this type don't offer any protection option at all for their touch pads. These come in a package of six and I already know five of these will never be needed with what I do. Good value and Best option.