MATERIAL - Our hourglass sand timer are mainly made of plastic and sand, and the outer layer is covered with a plastic protective cover, which can effectively prevent breakage and is very sturdy and durable. PACKAGE - Our packaging contains a total of 20 pieces of sandglass sand timer in 5 colors, each with 4 pieces. The size of the hourglass is 8.7 x 2.5cm, and each hourglass takes exactly 1 minute to time. It can play a good timing role in daily life. EASY TO USE - You only need to gently shake the colors hourglass and flip it to start timing. Different colored hourglasses can also be used in different experiments, making time management very reasonable. MULTIPURPOSE - This 1 minute hourglass can help you provide a great time reminder. It can be used for cooking, making tea, brushing teeth, and other activities. The colored hourglass is also very suitable for home decoration. WORRY-FREE PURCHASE - If you have any dissatisfaction or feedback with hourglass sand timer after receiving the product, you can contact us. We are dedicated to providing you a satisfactory shopping satisfaction.