BALANCE GAME. The stones are designed to be stable and non-slip, without damaging the surfaces where they are placed. Manufactured in Spain with an ecological approach made of LTPV combined with surplus coffee materials, rice husks and cork, being 30% recycled material and 100% recyclable. DIMENSIONS: Large stone: 10 x 20 x 4 cm. / Small stone: 10 x 13 x 3 cm. Includes cotton bag with closure. AGE: +3 years