• Black high quality bark tanned natural grain leather 1 inch (2.5 cm) wide and approximately 1/8 inch (3 to 4 mm) thick
• Nickel plated steel hardware
• 9 riveted spikes 3 @ 1.25 inch (3.2 cm) 6 @ 0.5 inch (1.3 cm)
• The small size fits necks 12 inches (30.5 cm) to 15 inches (38 cm)
• The large size fits necks 15 inches (38 cm) to 18 inches (45.7 cm)
• Handmade

Contact me if you want it made to measure or want to modify the design. Example modifications: all 9 spikes the larger size, all 9 the smaller size, or invert the existing sizes (3 @ 0.5 inch, 6 @ 1.25), etc.