This USB wired keyboard and mouse combo is built to last in busy school settings. Students enjoy comfortable keys, a standard and familiar layout with full-size F keys and a number pad. Durable keys last up to 10 million keystrokes. The silicone cover tightly wraps the entire keyboard to provide a liquid barrier tested to withstand frequent cleaning and disinfecting for safe, shared use. Bold, bright white characters ensure all students—even those with less-than-perfect vision—can easily read them. Ambidextrous optical mouse delivers smooth tracking for all-day use by left- and right-handed students. Out-of-the-box compatibility. [1,2]  Number lock key excluded from 10 million keystroke life.  Tested to withstand 2,700 wipe cycles with alcohol; equal to 5 classroom sessions per day, 180 classroom days per year over 3 years.