SUPERIOR MAERIAL： Made of pure cotton, which imparts softness and comfatable to the product. Made with weled D-ring to add durability. The straps are adjustable to provide maximum comfort and reliable fit, can be adjusted for all kinds of dog shapes,perfect for extra small, small, medium and large dog.Valentine's DAY DOG COLLAR: The cute heart pattern make your fur baby look so beautiful, and you can give it to your pet as a gift on Valentine's Day.HANDMADE BOW: Each bowtie is attached to collar by using two elastic straps and bows all handmade. The elastic positioned each side of the bow prevents it from moving around on the collar. We do the double box stitch at all of the stress points for added strength.You need measure your dog neck length before buy the collar.BEST SERVICE: Don’t hesitate to contact me if you have any requests or questions about collar or size, I'd love to help you what can I do