The Ball With Protrusions is a popular Montessori infant material.  It is great for tummy time to encourage movement, reaching, and grasping and the protrusions provide relief during teething.   

Squeaks for additional auditory stimulation. 

Lightly scented for additional olfactory stimulation. 

Ball size: 3″. 

No phthalates, safe for teething. 

Recommended for ages 0-18 months.

This ball makes a great travel toy too.   .