What allows you to adjust it according to your dog's needs is the adjustable feature. The reason why it is very wear-resistant and explosion-proof is that it has the professional and strong load-bearing capacity and hand-carrying. Adjustable sliding buckle and elastic design allow this pet safety belt to be freely adjusted according to your needs and allows the pet to move freely in a certain space. It is cute to dress up your pet with plaid pattern. It is constructed of polyester material. There are 2 different sizes to choose from. This product is perfectly suitable for pet dogs, puppies to wear. Item Name: Pet Harness Material: Polyester Features: Plaid Pattern, Washable, Breathable Size Details: Size: S, Bust: 24cm-30cm/9.4 \"-11.8 \", Neck Circumference: 18cm-22cm/7.1 \"-8.7 \", Weight: 1-3KG (Approx.) Size: M, Bust: 28cm-36cm/11 \"-14.2 \", Neck Circumference: 20cm-28cm/7.9 \"-11 \", Weight: 3.5-6KG (Approx.) Notes: Please refer to our size chart and choose the right size. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Package Includes: 1 x Pet Harness 1 x Traction Rope