Wooden blocks for kids made from poplar. Poplar is a light, yet durable hardwood. An affordable option for a great set of kids toy blocks.These blocks will last for many years to come. Shop our different sizes and styles of wooden building blocks for children. Each different style of block set is designed with different amounts and varieties of these wooden blocks. Choose one that best suits the needs of your child and family structure. So whether you need a beginner block set or a large classroom size set, you can find the perfect wooden building block set here at Back To Blocks. We want to provide the best, affordable wooden blocks for kids everywhere.