But that's not all - each jar of Lola Lemon Sensory Putty comes with a collectible charm featuring the charming Lola Lemon herself. Let your creativity soar as you stretch, squeeze, and mold this captivating putty, creating endless lemon-scented fun..Care Information: Sensory slimes are air reactive and if left out will dry out and become hard. Always return slime to an air tight container to avoid this. If slime starts to stiffen, add a little hand or body lotion and knead in thoroughly to loosen and return to desired texture.