The Talking Bead Chain with Lights, model 649, and the Mini Bead Chain with Lighjts, model 648, are sensory integration activities designed for use with children with upper extremity, sensory, neurological, or cognitive disabilities. These devices encourage children to reach out to touch the beads, helping to develop cause and effect. The bead curtain is suspended from a sturdy plastic frame for table- top use. Two recesses on the back of each device aid in clamping them to tabletops. Model 649 plays a pre-recorded message and red lights shine when the beads are manipulated. Model 648 has lights that shine when the mini beads are manipulated. POWER: Require four double-A batteries (not included). DIMENSIONS: Model 649 is 6 inches tall, and model 648 is 12 inches tall.