Theo Blocks

Meet The Theo Blocks: bold, beautifully clear large square acrylic blocks designed for open-ended play that grows with your child. Crafted from high-quality, crystal-clear acrylic, Theo Blocks invite children to build, stack, sort, and explore color and light in endlessly creative ways. Their generous square shape makes them easy for little hands to grasp while offering satisfying stability for bigger builds, think towers, patterns, and architectural masterpieces that won’t immediately topple. The vibrant rainbow hues catch and refract light beautifully, encouraging light play, color mixing, and visual exploration. Whether stacked, lined up, or paired with sunlight streaming through a window, Theo Blocks turn everyday play into a mini science moment- no lab coat required. Designed to seamlessly complement your existing collection, Theo Blocks pair perfectly with our other block sets and fit neatly inside our Busy Blocks.