Designed for Ages 5-6 (K-1 Kindergarten & First Grade) and older children, this Wooden Unit Blocks Booster Set for homes, home schooling, home-based childcare, or family unit block play with 40 blocks in 5 block shapes designed to support construction, tactile learning, and dramatic play for children ages 4 and up.

These wooden blocks are infant- and toddler-safe, suitable for ages 6 months and up, so you don’t have to worry about younger siblings putting these blocks in their mouths. They are completely free of borates, pesticides, and fungicides commonly added to rubberwood after harvest. We use only 100% Hard Rock Maple. We manufactured each block in the United States from Custom Milled Domestic FSC-Certified Hard Rock Maple. Each block is accurately cut to within 1/100 of an inch.

This 38-block set adds more DOUBLE unit blocks to your existing set, including 20 of the Double Unit Block shape and larger shapes like Quadruple Unit Blocks and Quadruple Unit Planks to support more larger building block contructions and dramatic play.

START with the MO1 Infant Toddler Starter Unit Blocks Set and add ONE or TWO Unit Blocks booster sets each year, in any order you choose.