Demo video here OUR VIBRATING ROLLER AND BRUSH ARE RECOMMENDED FOR THOSE WHO: Want to make water play more enjoyable, whether it is playing in a sink full of water or in the bath. Find vibration relaxing or stimulating. Might be especially useful prior to, during or after a stressful time, such as waiting for an appointment, going to the dentist or getting a haircut. Need sensory input to increase body awareness. Have difficulty sitting in one place, finishing a task, focusing, or have tactile sensitivities. Have a difficult time waking up in the morning and/or staying alert during the day. Do not use for people who: find vibration uncomfortable have recent fractures have joint instability have acute inflammation of the musculoskeletal system. PRODUCT DESCRIPTION Roll any part of the body or another object. After removing the plastic barrier from the batteries, ensure the small clear/white rubber band is in place to prevent water from entering the interior (see picture). Hold in hands prior to handwriting activities if grip is too tight or too weak due to poor sensory feedback. Choking hazard, contains small parts. Not for children under 3 years. Note, as with most vibrating items, there is a sound that could be distracting to others. 10 cm/4 in. long x 8 cm/3 in. at the widest point Limited availability of each colour: Blue, green, orange Requires two AAA batteries, included PRODUCT CARE Plastic exterior Cleaning: Surface clean with damp cloth and soap. Wipe or air dry.