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
Large; 9.625 x 2.875; Weight: .5 LB / .22 KG