Magnetic slime attraction.

There’s something strangely attractive about Tytan's Magnetic Space Putty. It may look like an alien species sent to destroy all human life, but it’s actually even more interesting than that! A fine iron infusion brings the blob to life when you introduce it to magnetic objects. Ultra-portable in its tin cylinder, you can unleash the dynamic slime anytime and anywhere, to tickle your friends’ scientific curiosity, or just de-stress by manipulating the mesmerizing motion of this slime.

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Buy on www.amazon.com
Under $25