Fast Freeze,Full FlavorWith built-in freezing liquid and a double-layer design,the slushie cup turns juice,milk,milkshakes,yogurt,and more into delicious slushies in just 1-2 minutes. No extra ice needed,ensuring a pure,authentic taste Easy DIY in MinutesTo use the slushy cup,freeze it at ≤ 0°F(-18°C) for 4-6 hours beforehand,pour in your favorite drink,and squeeze for 1-2 minutes until it turns into a slushie.