Illuminate the night with ZipString Luma, the ultimate glow-in-the-dark toy that carefully balances forces of gravity, lift, tension, and drag to fly a looped string in the air for amazing tricks!
Illuminate the night with ZipString Luma, the ultimate glow-in-the-dark toy that carefully balances forces of gravity, lift, tension, and drag to fly a looped string in the air for amazing tricks!