1. But Sturdy: this kind of 2 minute sand timer is mainly made of plastic, acrylic glass and sand materials with fine workmanship, and lightweight, sturdy and stable, easy to apply and carry, not easy to fade, break or deform, ing you a lasting 2.Colorful Sand Timer Set: we will provide you with 40 pieces of sand timers for classroom, designed in 8 different colors, namely blue, pink, purple, green, yellow, red, white, orange, sufficient and practical to meet your daily needs 3.2 Minutes Counting: the hourglass timer is designed in 2 minutes counting features, which can give you a clearer sense of the length of the 2 minutes, and also can help you cultivate the concept of time, finishing your work and study more efficiently 4.Wide Applications: you can put the classroom sand timers for in your home, office, kitchen, dormitory, playroom and classroom, playing decorative and practical roles, also they can serve as prizes for school programs, distribution items, stocking stuffers, gift bag fillers and more