For the little ones to unleash their imagination while learning, we present the Korki KIDS Stacking Cork Blocks. Made of light but resistant cork, they are ideal for them to play at stacking them, one on top of the otherand building fun shapes or towers. Korki is an educational toy that helpsdevelop fine motor skills, concentration and hand-eye coordination, as well as fostering imagination and creativity. The Kit consists of 11 types of pieces with different shapes and sizes, the largest being 3 x 9 cm and the smallest 1.8x3.6 cm. All pieces are stored in a comfortable 26 x 29 cm cork box.For maintenance we recommend dry cleaning the stained area, since cork is not a waterproof material and can deteriorate when wet.