This popular and versatile stacking water wave tunnel set from Grimm's Spiel & Holz Design is a beautiful, basic toy.  Like the rainbow tunnel, children play with this "toy" in many, many ways that will only become more and more creative as they get older.  This small version of the water waves is just the right size to take along to play with - think travel toy or restaurant toy.  It's also a unique gift for baby showers and birthdays when paired with our "Wave" book.  Please note that the "Wave" book is sold separately in the Games & Quiet Play section.  Ages 3+.  5 1/2" long.  Stained FSC-Certified linden wood.  Germany/Bosnia