The Doctor Squish Squishy Maker Refill Pack contains more fun deco and extra TPR squishies to use with the official Doctor Squish Squishy Maker (ref: 225677, sold separately). Continue making your own super satisfying squishies, just like Doctor Squish - the viral social media creator with over 1 billion views across YouTube, TikTok and Instagram!Use what comes with the set or choose your own fillings, using your own slime and sensory toys to make the ultimate squishies. Just add water to make your own slime, to use as your squishy filling.