1. Safety Hourglass Timer: Hourglass 30 minutes is durable material, hand blown from clear glass. We increased the thickness of the glass from 1.55mm to 1.83mm, the sand timer set is more durable. And we have also done a good anti-collision design on the packaging to ensure that the hourglass timer can be ly delivered to your hands. We've placed a time marker on each hourglass to help you differentiate the time better. 2. Practical 30 Min Sand Timer: Turquoise Biloba Puff Hourglass Timer is a useful time management tool in our life, perfect to use the sand clock when exercising, cleaning the house, motivating to do chores, yoga, meditation, or science and education. The sand watch can help you reduce the interference of electronic products, make you more focused on one thing, and improve the efficiency and concentration of things. 3. Minimalist Home Decoration: 30-minute sand glass adopts the simplest color scheme and puff shape, without adding other decorative frames, so that the hourglass looks elegant and generous, minimalist style hourglass timer is more than just a piece of art, it's also the perfect home decoration. It is perfect as an ideal decoration for a home, office, desk, bathroom, study, mantel, and bookshelf. 4. Hourglass Sand Timer is a Great Gift: You can place the 30-minute hourglasses on the table for your birthday party as décor. You can also send an hourglass as a gift to your family, relatives, partner, or friends on Mother's Day, Father's Day, Valentine's Day, Thanksgiving, or other festivals. Let everyone you love both can eoy the sand falling within the hourglass shows how time flies. They will love this thoughtful 30-minute hourglass gift from you.