[Great learning Tool]: This set of educational toys combines upper and lower case letters A-Z, numbers 1-30, basic symbols and graphics to make it an ideal learning toy. Let your child learn basic letters and numbers while having fun. [Size]: A total of 36 bubbles, the size is 4.92*4.92*0.63in(12.5*12.5*1.7cm), which is beneficial to parents and children playing together, enjoying good family time. [Comfortable experience]: When you press the bubbles, there will be a slight popping sound, which will make people feel comfortable and have an effect to relieve stress. This is a good thing for those with autism or ADHD. [Premium Material]: Made of high quality silicone material, comfortable, durable and soft Washable. It is water-proof as well, so you can freely wash it when it is dirty. [Great Gift]: It's a fun gift for birthday parties, rewards, educational tools, and more. Not only can let the child know the basic letters and numbers, but also can let the child have fun.