Tyre Stress Relievers make excellent novelty desk accessories for any company and the automotive industry can really take advantage of the design! Product is made with superior PU material is wonderful for relieving tension and pent up frustration. 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.