Easy to put on and take off: This neck-free seat belt has a snap fastener suitable for the body and neck, which makes it easier to put on and take off. The dog's head does not have to be wedged into the seat belt and the ears are not injured. Large area Velcro fastener: Velcro fastener + selected buckle double protection, more secure. No strange smell, no irritation to the skin, no seizures. The hook surface and the rough surface are tight, which is stable and durable High-quality materials: The shoulder straps and wear-resistant fabrics are comfortable and are not disturbed or irritated when moving. The breathable mesh lining with soft padding prevents injuries to the dog and offers additional comfort and protection. Night Reflective Design: The reflective design can effectively prevent traffic accidents due to light problem at night and help the owner find the missing pet position Practical socket: It has a practical one-button safety socket design that is very easy to put on and take off and can be opened with a light push. Easy to use, save time. Size: S code: bust 48cm- 57cm, suitable for weight 5-7kg; M size: bust 58cm-69cm, suitable for weight 7-18kg; L size: bust 70cm- 81cm, suitable for weight 18-30kg; XL code: bust 82cm- 95cm, suitable for weight 30-40kg; XXL code: bust 96cm -113cm, suitable for weight 40-60kg; Note: All measurements are taken manually and there is 1-3CM error; Due to the lack of the photo light and the display, there will be a slight color difference. The PXCL team is at your service and we hope you enjoy your life