Science Can Rock Tumbler

This kids' rock tumbler kit rocks! Take rough rocks and smooth them into polished stones using the same process that has worked in the ocean for millions of years. Entire process takes about 2 days. Includes 9 rough stones, fine and coarse polishing powders, white crystal, jewelry fastenings, storage bags, measuring cup. Noise reduction cover reduces the traditional rock tumbler noise by 70%.

Recommended for ages 8+

Hape uses sustainable materials in each of their infant and toddler toys. Whether it's a set of infant-safe rattles, a bathtime toy, or a first musical instrument, we trust Hape to fill our shelves with safe and developmentally appropriate toys that will grow with every child.