Show your client you are the missing piece that will help them succeed! Sold as a set and not separately great for any occasions! Product is made with superior PU material is wonderful for relieving tension and pent up frustration. Set of yellow blue red green. No two stress shapes are the exact same in shape, colour or density. Some chips or scuff marks are unavoidable due to variations between shipments and mass productions. Stress Shapes are not intended for use by children or animals.