Phenomenal pressure-activated, vibrating sensory cushions that can double as a silky sensory seat! Provides an easy, comfy way to provide self-regulating tactile sensory input that tends to be very calming and soothing for most sensory seekers. On the flip side, they can also be an effective sensory tool for individuals who are hypersensitive to touch and textures. This versatile sensory tool also makes a neat fidget tool for your feet! Color may vary. Each one requires 2 "D" batteries that are not included. AWESOME!