Assist sensory motor planning. It provides feedback for those with difficult in vestibular or proprioceptive processing. O-rings secure the weights and allow positioning anywhere on the writing instrument. Product Features Weights are approximately 1.5 ounces Includes 3 weights & 6 O-rings For vestibular or proprioceptive processing


$6.51Amazon.com Price
(as of January 17, 2019 3:22 am GMT+0000 - Details)