Wooden
SKU: CW70178
Time left
SKU: ME05243
A set of four hourglasses that measure the following distances in time: 1 minute, 2 minutes, 3 minutes, and 5 minutes. They can be used to explain time and how quickly it passes, as well as to perform mathematical calculations based on time.
SKU: CW20273
SKU: CW20272
SKU: CW50577
Time left
SKU: 44099
Time left
SKU: 44100
SKU: 44215
SKU: 50723