Complete care for the dogs neck, 360 surrounding the integrated animals chest and back, evenly distributed pressure, alleviating stress and taking into account the adjustment and support force, and the light wrap protects the chest and the dogs abdomen Going out to walk the dog, the dog is comfortable and comfortable, does not retain the pulling rope, the soft sandwich net makes the gripping part, the thickened design, the feeling is more comfortable, traction is not restricted Reflective design can effectively avoid traffic accidents due to light problem at night, and help owner to find lost pet position Lightweight rotating buckle, the Buckle is easy to connect and can be flexibly rotated, which makes it more convenient for pets to put on and take off. D-shaped buckle is made of lightweight aluminum alloy, anti-corrosion, high hardness and non-deformation, frosted and anti-rust treatment, and has been laser engraved with registered trademark. The appearance is good and provides a safe starting point for the pull rope. XXXS (bust 24-28cm) is recommended to choose 1-3kg XXS (bust 28-32cm) is recommended to choose 4-6kg XS (bust 32-36cm) is recommended to choose 7-9 kg S (bust 36-44cm) recommend a selection of 10-13 kg M (bust 44-48cm) is recommended to choose 14-17 kg L (bust 48- 54cm) is recommended to choose 18-20 kg Use a soft ruler to make a circle around the dogs front legs, which is the widest part of the front chest, and it is better to set aside 2-3 cm additional. The circumference of the dogs bust can be obtained. Tips from the store: 1. The size is manually measured, please allow the error (1-3cm). 2. Due to the different monitor pixels, there may be some color difference, please refer to the actual product.