Stretch it, squeeze it, stick it, bounce it, write on it, and watch it glow in the dark! There's nothing silly about this putty, just tons of addictive, irresistible possibilities. Using the included blacklight keychain you can draw, write, and scribble bright designs directly onto the putty. Recommended for kids ages 5 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.