The cylinders are graded from very soft to loud and each cylinder has either a red or a blue top and is contained in a wooden box with a matching red or blue lid.;To refine the child auditory sense and memory.;It also provide experiences in matching and grading.;We provide 30 Day money return guarantee, as long as you find the purchased item is different from our listed description and condition.

• Montessori Sound Boxes

Montessori Sound BoxesD & D Distributor