Child enjoyment Can sound, rotate, grasp,shake, attract babies attention, promote the development of the upper limb muscles and hand-eye coordination. Best Color Bright colors help the baby's early perception of color, prompting the brain to develop faster. Great Choicethe sound of the rattle can help the baby to distinguish the sound and identify the direction. Three Dimensiongeometric three-dimensional graphics can induce the baby's imagination of space, and cultivate creative thinking ability. Size Approx.Drum,13.5*13.5*8cm Drum Hammer,16cm Sand Hammer,11.5cm Rattle,7.5*7.5cm Speaker,11*7cm Contact US If you have any problem with the products,please contact us by email,we will reply you within 24 hours andsolve it.ANY THING is negotiable,we just want you happy.