1. Sturdy polypropylene webbing with durable qui release plastic bule and heavy duty zinc alloy D-ring and cute tie 2. This Christmas dog collar is available in 4 different sizes for small to medium dogs or s. 3. A snowflake pattern specially designed for the w Christmas holidays to make your pets have a wonderful day with you 4.XS: 30*1.0cm (length*width), the adjustment range is 20-30cm, and the net weight is 14 grams. S: 40*2.0cm (length*width), the adjustment range is 30-40cm, and the net weight is 39 grams. M: 50*2.5cm (length*width), the adjustment range is 36-50cm, and the net weight is 66 grams. L: 60*3.0cm (length*width), adjustment range 40-60cm, net weight 92g 5. Note: Please measure your dog's ne before choosing the size, you can refer to the size