Jumbo Cardboard Blocks (24 pc) favorite either to an expedition or

either to an expedition or by discarding it to the color-appropriate discard pile

Combine the base station with the base stations from the other Ooze Labs kits (Chemistry Station

ammonium dihydrogen phosphate

with their handy suction cups

Jumbo Cardboard Blocks (24 pc) favorite either to an expedition or24 lightweight yet durable blocks in three sizes are perfect for little builders with big plans Bright primary colors with brickwork patterning Premium, extra thick cardboard is easy to assemble and easy to wipe clean (adult assembly required) Super strong the red blocks hold up to 150 lbs! Makes a great gift for toddlers and preschoolers, ages 2 to 5, for hands on, screen free play