Customized Keychains & Keylights, Volleyball Key Chain - Stress Reliever - Polyurethane, Volleyball - Sports shape designed stress reliever key chain. Due to their handcrafted nature, stress ball sizes, colors and textures may vary. Factory cannot guarantee consistent imprints or PMS matches. Material: Polyurethane. ... #LKC-VL08 $1.48/each.