1 Minute Hourglass , Mini Sandglass Sand Clock Timer 60 Seconds Glass Tube for Mantel Office Desk Coffee Table Book Shelf Material: durable PVC, ABS, glass tube and sand Also useful during meetings and training sessions Kids favorate:great to have the young children brush there tooth for long info so they get done well Used for timing cooking, games, exercising and so on,also act as a wonderful decoration for your home and office Counting time: 30 seconds, 1 minute, 2minutes, 3 minutes, 5 minutes, 10 minutes, each one with 10% time deviation