Leather Spikes Dog Harness Large Black 26"-33.5" Chest, 28 spikes Pitbull, Boxer Made of 1" wide leather, features nickel-plated hardware and heavy duty D-ring Chest girth: 26"-33.5" 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