Close your eyes and feel the tactile pattern on the small hand time. Test your sensory skill by matching that pattern to one on the tactle base plated that you feel with your feet. That is just one of many ways of matching using the Multi Match Sensory DIscs. Match colors, shapes or numbers. Toss a disc to the matching colored base plate. Play seated or standing! Fun for pme pr i[ tp a group of four platers. Set includes 5 tactile base plated of different colors and 20 hand tiles ( 4 of each color) Base plates measure 11.75" diameter. Hand tiles measure 4.5" in diameter. Great for enhancing sensory percetion, color and shape matching, and fine motor skills.