Yerwal Pet Travel Tote Sling Carrier Backpack Durable Breathable Mesh Bag Size: Approx 17.7" x 5.1" x 11". Suit for pets up to 13.2lb. Such as Cats,Minlature Pinscher, Chihuahua, Yorkshire Terrier, Pomeranian, Mini poodle, Miniature Schnauzer, Teddy cups or other similar types of pets. Design:Special hook design which connects to pet's collar in order to protect your pet's safe. Features:Contraction rope is adjustable according to the pet's head size(1.6"-4") Convenience:Plastic buckle is easy and convenient to adjust the length.Zipper design is easier for pet to get in and out Apply to: Puppy, Kitty and other little pet,can't fit for the heavy duty pet.