Water Marbles- Just add water! These ultra-sensory polymer balls absorb and expand 100x their size in water
- Just add water! These ultra-sensory polymer balls absorb and expand 100x their size in water 9341570113075
- Recommended for ages : 6 to 13+
- Measures approximately: 1.57 x 1.57 x 6.30 inches..
- Weighs approximately: 0.16 pounds.