Viskey LED Leopard Print Pet Collars, Purple, Large Size Viskey LED Leopard Print Pet Collars, Purple, Large Size. Material:nylon. Small size: width:0.98", adjustable extent:11.81"-15.75". Medium size: width:0.98", adjustable extent:14.96"-19.69". Large size: width:0.98", adjustable extent:18.90"-23.62". one piece purple and large size pet collar in each package.