Pesco 8 Colors New Spiked Studded Leather Dog Harness for Pitbull Mastiff Boxer Brand new, 100% Quality Guarantee, Leather dog harness Studded spikes cool design Steel buckle,4 parts to resize,each part has 5 eyelets for adjustment. Neck size for 45-60cm(17.5-23.5") Chest size for 65-85cm(26-34")