Features:

1. Can bite, tooth gel blocks, can be disinfected at high temperature（Don't touch the wall of the pot） 2. Clenched when listening to the pen, hearing and touch feeling training 3. Education in competition Color perception, animal recognition, geometric mosaic design 4. Quantity: 20 no boxed, 40 no boxed, 20 original boxes, 40 original boxes, 50pcs with Storage Box.sent according to your choice. 5.Color: random colors note: 1. Storage box is for display only, not included. 2. Not very soft rubber, more like soft plastic, can be squeezed elastically and can be boiled. (1.TPR material, formaldehyde-free, safe and non-toxic. In terms of processing, this material is a plastic. By its nature, it is also rubber. Therefore, there is the hardness of plastic and the flexibility of rubber, which can be squeezed and deformed without affecting the use of building blocks.)