Learning Advantage Perception Semispheres (discontinued) option1-name-season Set of 20 pieces includes

Set of 20 pieces includes 3-piece pendulum

Includes 7 pockets

Easy to clean after use in soapy water or in a dishwasher

Ingenious play and learn system teaches anyone how to play Chess

Set of 500 translucent plastic counters (2cm dia

Learning Advantage Perception Semispheres (discontinued) option1-name-season Set of 20 pieces includesSet of 8 sensory Perception Semispheres measuring 2" diameter come in eight different clear colors and feel smooth and warm to the touch. The very youngest children will enjoy handling them in free sensory play or as part of a treasure basket collection. Older children will find them fascinating as they hold them up and look through to see the world around them in different colors. When a hemisphere is placed on top of an object, it magnifies it by 4