Eco-Bricks and Playhard Heroes Sets | Source: Once-Kids/the Toy Insider

The world of eco-friendly toys just got a whole lot more sustainable — and fun — with Once-Kids’ diverse product line of wooden playsets.

The hand-crafted action figures and city-inspired block sets are made with natural, renewable bamboo wood to help fight deforestation and protect the world’s oceans from plastic.

Designed for kids ages 3 and up, the Eco-Bricks line is available in sets of 24, 45, 90, 145, and 250 pieces. These interlocking block construction sets are as customizable as they are buildable to help kids hone their fine-motor and visual-spatial skills. The bricks’ smooth, blank surfaces make painting and coloring a breeze while adding a personalized touch to houses, spaceships, trucks, and other wooden creations.

Wanderlust Paris Set | Source: Once-Kids

Priced $19.99 and $29.99, respectively, the 24- and 45-piece sets include wooden blocks, covers, wheel and axle pairs, and 10 colored pencils. Priced from $49.99 to $109.99, the 90-, 145-, and 250-piece sets include the previous features, as well as bases for a stronger building foundation. Each Eco-Bricks set is packaged in a laser-engraved, wooden storage box.

The Playhard Heroes line channels some serious eco-friendly awesomeness with its detailed, poseable action figures. This line is perfect for developing kids’ creative storytelling and communication skills, and each hero is named after a different tree species to make kids mini-environmental experts. Sycamore, Birch, Fir, and the gang are made of colorful, sturdy wooden parts connected by elastic string and metal hinges, each priced at $18.

Related: These Adventerra Board Games Are Perfect for Mini Eco-Activists

From New York City to Hong Kong, the Wanderlust line brings the world’s big cities right to your playroom with its intricately-designed, handcrafted wooden pieces. Each set includes nine to 14 block pieces that make a perfect landscape backdrop for all playtime activities. Priced at $30, the Wanderlust line comes packed in a laser-engraved, wooden storage box like other Once-Kids products.

The Eco-Bricks, Playhard Heroes, and Wanderlust lines are all available at once-kids.com. Once-Kids contributes 1% of total sales directly to the Trash Free Seas Alliance to aid in the cleanup of plastic from our oceans.