Features:<br />Keep hot: for keeping your tea at the perfect sipping temperature while you attend to other things.<br />Material: soft silicone, environmental protection, safety and non-toxic.<br />Fits most cups &amp; mugs: 3.9inch diameter, fit for most cups, mugs or tea pots.<br />High temperature resistant: can handle extreme temperatures up to 220℃ / 428℉.<br />Health: protect your drink from dust.<br/>Specifications:<br />Material: silica gel<br />Color: yellow; pink; blue (optional)<br />Heat resistant: 220℃ / 428℉<br />Diameter: 100mm / 3.9in<br />Package weight: 37g / 1.3ounce<br />Package size: 100 * 100 * 30mm / 3.9 * 3.9 * 1.2in<br/>Notes:<br />1. Please allow 1-10mm size error due to manual measurement, thanks for your understanding!<br />2. Item color may show slight aberration due to different light and monitor display.<br/>Package List:<br />1 * Cup Lid