Create, learn, and develop with Marvel Heros STEAM Science Putty!
Your putty collection just got super-cool!
Each tin includes a below-the-science insert so you can discover the secret science behind the putty!
Hulk - Gamma Glow: Hulk's putty will glow in the dark after being exposed to UV light, just like a gamma-irradiated object would!
Tin size: 7.5cm diameter x 2.5cm high
Not suitable for ages under 3 years.
Create, learn, and develop with Marvel STEAM!
