Hourglass Timener, Sand Timer, Kunststoff Timener, für Kinderspiel Game Classroom Family Office Küche verwenden(1 Minuten, Blue)

Product description
Hourglass timer is specially designed for people in the 21st century. Don't use the mobile phone to time, so as not to disperse the energy. Use these durable and colored hourglass timers to help you stay focused and efficient for a long time. In addition, hourglass timer can help your child enhance time awareness and improve work efficiency.
It is very suitable f...