Adjustable Sand Timer

• Description :

  This Sand Timer is adjustable between 5 seconds and 3 minutes. Different types of sand and materials can be used for investigation. Designed for the many activities that require general or comparative timings to be taken. The Sand Timer is made from tough and durable plastics and is complete with a bag of silver sand. Complete with product guide. Size: 14em x 8cm.

• Origin :

  BO