1" x 20-28", Blaze Orange, Ruff Maxx Collar With Safety Center 'O' Ring, TPU Coated, Highly Visible For Safety, Extremely Durable, Easy Clean, Reduces Odor Water Repellent Which Is Suitable For Dogs Who Love Water & Woods, Includes Unique Pin Keeper, Which Allows A Longer Collar For A Smaller Necked Dog, If Worn Loose, O Ring Allows Dog To Slip Out Of Collar If Dog Gets Hung Up On Brush In The Field.