PARTY FAVORS: perfect for birthday theme party, sitting still game, classroom, exercising timer and timing kids' study. decoration for your home and office. Great Gift for children and . Perfect supplement when you play games like speak out game, making your more exciting. GREAT GIFTS: gifts, school class prize, giveaways, hand outs, stocking stuffers, goodie bag fillers. Kids will love these hourglass. MATERIAL: Made of premium plastic and glass. Safe and durable. sand are by quality covers and will not or leak . Unlike cheap copies, the sand in hourglass goes smoothly and 't stuck. color: red material: plastic Size: 8.5cm NOTICE: Each sand timer is not a professional timing device. Package Contents: 20 x Sand Timer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.