Safety Plastic Sand Timer for Educational

safety plastic sand timer for educational Outside is a firmly acrylic tube to protect the glass timer inside. Quite safety for kids to use. Material: ABS + PC + glass + glass beads time : 5 min or customize Size : 8.5 * 16 cm Hexagonal plastic sand timer with acrylic protection on the outer...

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safety plastic sand timer for educational 

Outside is a firmly acrylic tube to protect the glass timer inside. Quite safety for kids to use.

Material:  ABS + PC + glass + glass beads

time : 5 min or customize

Size : 8.5 * 16 cm

Hexagonal plastic sand timer with acrylic protection on the outer layer, it is very safe for children. This sand timer is widely used in school teaching, students can use it to perceive time, develop time concepts.

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