Vivaglory Mesh Pet Slings Single Shoulder Carriers for Dogs, Rabbits and Cats, 3 Sizes & 5 Colors SIZE & COLOR: Available in 3 sizes and 5 colors. Please noted that Small is for pets weighing 0.55lb-4.4lb, Medium is for pets weighing 4.4lb-7.7lb, Large is for pets weighing 7.7lb-11lb MATERIALS: made of durable mesh fabric to ensure enough breathability and bearing capability USER-FRIENDLY DESIGN: adjustable shoulder strap meets customers different need ; extra pocket to provide room to store keys, mobile phones; solid and safe zipper helps to keep your pets body in the bag; EXTRA CONVENIENT SUPPLEMENT: a strap with a hook at the end was sewn into the bag, which can be connected with the D-ring on a pet collar or a pet harness in case that pets jump out or be in danger 100% CUSTOMER SATISFACTION: customer satisfaction is our top priority; Any question and any problem, we are always pleased to assist all our customers to resolve them satisfactorily