FEATURES: Mark-white version is ideal for dogs during marking retrieves. Blind-blaze orange version is designed for blind retrieves, as dogs are unable to distinguish orange color. Flash-black/white version creates a "flash" when thrown that is highly visible to dogs. Tough Foam Construction for Durability, Floatation and Comfortable Mouth Feel Pentagon Shape is Easy to Hold and Stackable and Will Not Roll Rugged, Flexible, Tasteless, Machine Washable Medium; 9.625" x 1.875"; Weight: .25 LB / .10 KG