So far my 4 month old and 2 year old are having a blast with them. Baby chews, toddler stacks. Great quality and soft enough to squeeze. I do suggest checking them all out. One of my blocks the pink one felt thinner cheaper silicone than the rest?! Weird but no biggie it's not enough to go through hassle of return since I got by a daily deal. The bag also doubles up as a zip storage bag. Great colors and designs!
Excellent toy for infants-toddler (I'd say best for 36 months of age and under). We love these soft rubber building blocks so much, that I bought these for an expecting mom for her child to have. There is a small air hole in each block therefore these should not be used a bath toy as mold will grow. My children loved building with these blocks and as they grew older they started to recognize the pictures on the blocks which led to animal recognition, counting numbers, etc. Simple, yet such an excellent toy.