Coastal Pet Products Circle T Oak Tanned Leather Double-Ply Spiked Dog Collar, 1" x 18", Black Circle T oak tanned embellished and spiked dog collar is designed specifically for dogs Made of oak tanned grain premium leather material Its material become even more beautiful with age, develop a luster that cannot be achieved with other leathers Feature a single row of traditional spikes and its diamond shaped studs add an updated look to this collar Available in black color; measures 18-inch length by 1-inch width