【Multi-Size Design】The silica gel ice tray can make 3 large hollow cylindrical ice cubes, suitable for Stanley cups of 30-40 ounces. The 10 mm straw cap has an airtight seal, dustproof, and anti-drip design, and its compact form factor makes it convenient to carry and use. 【Long-Lasting Cooling】The large hollow cylindrical ice cubes are 0.5 inches / 1.3 cm thick, and the cooling time is longer than ordinary ice, so you can keep your drinks cold all day long, drinking water all summer long! 【High Quality & Safe】The silica gel straw cover and ice maker are made of high-quality silica gel, BPA-free, odorless, durable, reusable, non-toxic, safe and reliable, and will not harm your and your family's health. ✱The product has been opened once for inspection, but it is unused♪ ✱Instant purchase is welcome ✱Shipping will be closed on weekends and holidays ✱Follow-up discount is available ✨ Please see the profile ✱Bulk purchases are welcome, price negotiations are welcome, please feel free to comment #K2R's products are here Ice tray Silicone Straw cap Tumbler Pu Silicone Cover Compatible with Stanley Cup 30-40oz Stanley Cup Ice Maker for Home Ice Making Container Easy to Remove Whiskey Super Big Size Hollow Cylindrical Ice Alcohol Birthday Present Father's Day Gift Ice Container 58-23