SIZE -- collar neck girth is approx. 13''-17'', dog necktie collar length is 18.9''. includes 3.5'' hook and loop tape at each ends, make it's collar girth super easy to adjust. Black bowtie length is 3.1''. Warm Notes: leaving a 2-finger gap while measuring your pet's neck would bring a more comfortable fit. EASY TO ADJUST -- dog tuxedo collar designed with 3.5'' magic closure tape at neck back, super convenient to put on, adjust to a suitable length, and won't cause discomfort on our pet's neck. PET-FRIENDLY MATERIAL -- white pet collar made of premium cotton and sewed with silky dog collars bow tie. Soft and breathable, just more comfortable. SUPERB WORKMANSHIP -- dog wedding collar is constructed with dense and even stitchings. Attention to details makes our pet more cute, adorable and professional. SUITABLE ALL -- classic dog tux fits dogs/cats of different breeds. Perfect choice for either wedding, photography, parties, birthday, valentines, celebration, graduation pets grooming, dog suit, dog wedding outfit, or daily wear. Add a touch of energetic for our pet. About Koolmox dog tuxedo for medium dogs Features: 1. Material: made of 100% cotton premium fabric, soft and comfortable. 3. Closure Type: hook and loop tape at pet neck back. 4. Application: classic dog tux collar with bowtie is perfect for dog, cat and pig wearing on all occasions. Why Koolmox dog tuxedo? cotton collar, better for your pet's skin 4 sizes for small to large pets to choose. hook and loop tape at each ends, super easy to adjust. closure tape at neck back, pet won't feel uncomfortable. bow tie for dogs has dense and even stitching, professional makes perfect. classy white and black dog formal wear collar never goes out of style.