Brainstring: Original STEM this nautical-themed block set has

this nautical-themed block set has a variety of optical and auditory effects to enhance sensory play as each block has its own unique charm

this lifelike Monolophosaurus is so realistic

Tensions rise as you scramble to outpace and outsmart your opponents in this ingenious game of perception

Large barrier-free school building with elevator

Brainstring: Original STEM this nautical-themed block set hasTie your thoughts together. Three groups of different colored strings, arranged on six sides, slide into grooves and stimulate your brain in this unique and captivating puzzle. Once you master untying the knots, will you be able to swap the colored strings without making a knot? Brainstring Original is fun to play and even more fun to solve!