Color and size: Our silicone stacking toy consists of 7 arcs of different colors and sizes with a total size of 14cm long x 7.5cm high x 4cm thick (5.51 x 2.95 x 1.55 inches). Bright and colorful colors like the rainbow will attract your kidss attention and help improve your childrens concentration. Perfect for Montessori early education. Premium Silicone Material: Made of safe non-toxic silicone that is carefully selected so your kids can put it into mouth. Delicate and smooth to the touch the material is durable and easy to stack. Not only can it be used as a stacking toy it can also be used as a chewing toy for babies. Can be disinfected or boiled at high temperatures below 68°F (201°C). Imagination and Aesthetic: Although it has a simple geometric design there are endless ways to mix and match. Enough stimulation of babys creativity and engage in play. Build a rainbow tunnel the childrens aesthetic is formed and dig the potential of the art of the right brain. It stimulates the senses and vision and can also be used as a bath toy. Skill Developments: Silicone stacking toys help the development of the body and brain and develop hand-eye coordination skills. Stacking and nesting can better stimulate childrens inner challenges integrate imagination and creation cultivate early logical thinking skills enhance childrens practical ability and patience and improve motor skills and visual spatial skills. Promotes toddlers balance concentration patience observation and challenge skills. The Perfect Family Game: Not only can children play alone improve their patience and cultivate independent thinking and logical reasoning skills; also they can play with multiple children to learn faster through competition among baby; alternativly it can be a game between kids with Parents and turns it into an interactive game which ties up family relationship.