Uxcell 3 Minute Sand Timer 4pack Small Sandy Clock Count Down Sand Glass Black

Advantage Made of glass and sand and the shell protection cover is made of durable plastic waterproof and not easy to break. The inner wall of the sand glass is smooth so the sand can go without blocking and won t get stuck. Instruction Before use please drain all sand to one side and turn it over to start timing NOTE: Slight error in product color and time due to manual measurement and shooting