Balance stones, 11 pieces, colorful triangular plastic play equipment, sports toys, nursery school, kindergarten, core training bstone001 Product Description This is a colorful balance stone set perfect for improving children's sense of balance and motor skills. It comes in large, medium, and small sizes, and you can adjust the difficulty by changing the arrangement and height. There is a height difference of 19cm, allowing you to create dynamic courses. It can be used both indoors and outdoors, and you can train your core while playing. The rough surface is non-slip and the rounded design provides a sense of security. [4 Sizes] LL: 40 x 40 x 23.5cm x 1 piece (Purple) L: 36 x 36 x 15.6cm x 2 pieces (Red/Blue) M: 34 x 34 x 7.5cm x 4 pieces (Red/Green/Yellow/Purple) S: 23 x 23 x 4.5cm x 4 pieces (Blue/Green/Yellow/Orange) Specifications: LL x 1 (Purple) L x 2 (Red/Blue) M x 4 (Red/Green/Yellow/Purple) S x 4 (Blue/Green/Yellow/Orange) *Please note that three of the non-slip pads on the back are missing. There are minor scratches and dirt, but overall, I think it's clean. (Please forgive my amateur assessment.) Purchased on Rakuten in 2024