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Amazing Jumbo Water Marbles ;Great for Gift Giving As Stocking Stuffers. Kids of All Ages Will Love'em.

Color: Multi.Cosmo Beads Brand; Jumbo 10g (35-40beads), Size (diameter): Dry: 0.5-0.6cm Hydrated 3 -3.5 cm.

Bring out the scientist in your kid with this fun Jumbo- water balls Colorful water ball, Just how does water ball hydrate? This keeps kids fascinated for hours.

These balls are really cool wet and wacky, soft and squishy, fun and funky, bouncy and beautiful. They start off hard and tiny. Add water and watch them grow to more than 100 times their volume. While they grow have fun never ends.

Eco-Friendly Non Toxic. Reusable up to 2 years