Red Dingo Dog Harness Small neck circumference : 9,8 - 15,3 in (25-39 cm) chest circumference : 11,4 - 16,5 in (29-42 cm) Red Dingo dog harness Webbing - Premium nylon webbing, woven from quality fine yarn for a softer feel. Densely woven edges for maximum abrasion resistance. Exceeds ISO standards for washing and UV colour fastness. D-Rings - Fully welded from solid stainless steel. D-rings will not rust and therefore will not discolour pet's fur. Bucklebone - An original Red Dingo trademark and registered design. 'Bucklebones' are designed not only to look good, but to be amongst the strongest side release buckles used in the pet industry.