Pet Kingdom 18-20'' New Leather Large Spiked Studded Dog Collar 2" Wide,White Material: Genuine Leather Front and PU Leather Back, Metal Spikes Adjustable belt buckle closure with five holes for perfect fit. 2" wide double layer PU leather Nickel-plated hardware and heavy duty D-ring Size: 20" L x 2" W, Neck Circumference: 17"- 20" (44-50cm)