Lean Toys hydrogel balls are designed for gel ball games. To use them, soak them in water for approximately 3–4 hours until they reach a size of 7–8 mm.

They can be stored in a container with a little water to prevent them from drying out. Not suitable for children under 14 years of age.

• Quantity: 20,000 pieces
• Colour: Red
• Material: Hydrogel polymer
• Size...