SAFE HOURGLASS: The large colored 60-minute hourglass is made of friendly high borosilicate glass and plastic material. And each sand timer 60 min has a number of time markings, making it easy to distinguish which timer is for which use. Size: 13.2 x 6.6 cm
UNBREAKABLE SAND TIMER: The outer layer of the hourglass is made of friendly plastic and the inner is made of glass, which is protected by double layers. And the hexagonal top caps are firm and durable, so it is more robust and safe, avoiding mothers' worries
BEST TOOL FOR TIME MANAGEMENT: Sand timers for classroom 60 minutes help your children do things more efficiently and develop a strong sense of time. The 60-minute hourglass can be used for cooking, games, classroom, study, desk decoration
WARM TIP: This 60-minute hourglass is mainly made for games, which is not a precise timing device, so there are time deviations.