- 1.5 Sand Timer Set: This set includes 5 durable hourglasses in vibrant colors, each designed for different time intervals: 3 minutes, 5 minutes, 10 minutes, 15 minutes, and 30 minutes. Ideal for managing time while boiling eggs, reading aloud, brushing teeth, playing games, showering, or preparing for bedtime. Perfect for both home and office use. - High-Quality Construction: Crafted from robust borosilicate glass, natural sea sand, and a sturdy ABS shell, these hourglasses are built to last. The smooth sand flow ensures accurate timing without sticking, while the shockproof ABS base adds durability. Each timer measures 3.7 x 1.7 inches, making them stable on any flat surface. - Effective Time Management Tool: Our hourglass timers help children and adults alike develop a better sense of time. Use them to enhance focus during study sessions or to make playtime more structured. They are excellent for planning tasks and organizing both work and personal life. - Important Note: Please be aware that these hourglass timers are not precision instruments; a time variance of ±10% is normal. If sand becomes stuck, simply tap the timer or place it in sunlight for a moment to resolve the issue.