Apple Watch software update includes hand-washing timer, sleep-tracking features | PhillyVoice
Learning Resources Time Tracker Mini Visual Timer, Classroom Timer, Hand Washing Timer, Auditory and Visual Cue, Ages 3+ 4.8" x 3.3" x 3.3" - Walmart.com
20-Second Handwashing Timer | Becker's School Supplies
Handwashing Timer! - For Small Hands
20 Seconds Hand Washing Timer | No Battery LED lights provide Visual Cues | Hygiene recommendation by CDC | Touchless and automatic | Protect Home, Schools, Clinics | Chrome
Touchless Handwashing Timer - Play with a Purpose
Amazon.com: Learning Resources 20-Second Handwashing Timer, Children's Timer, Home & Classroom Sanitation, Ages 3+ : Toys & Games