Custom Stress Relievers, Policeman - Stress Reliever - Polyurethane, Policeman shape stress reliever, 2 1/2" x 1 1/2" x 4 1/2". Due to their handcrafted nature, stress ball sizes, colors and textures may vary. Factory cannot guarantee consistent imprints or PMS matches. Material: Polyurethane. ... #LCC-PM06 $3.92/each.