Black Spiked Leather Dog Harness Large 26"-34" Chest, 28 Spikes Pit Bull, Boxer, Bull Terrier Made of 1" wide PU leather, features nickel-plated hardware and heavy duty D-ring Chest girth: 26"-34" All 5 straps are adjustable . Strong and durable. Allows the dog to have relaxed movement of muscles, makes it flexible and efficient. Chest piece has 28 spikes