Features: - It is an excellent way to ensure both you and your pet's safety while going outside at night- It can be worked as a decoration that makes your pets more attractive- Easy and comfortable to wear and remove- Bright 3 light modes: Continuous on, slow flashing, fast flashing - Simple to use: Pressing the control button for changing light modes- LED powered by 4 x CR2032 batteries- Battery life: Approx. 60 hours- Material: Nylon strap- Item size:S: Chest: 12.5 - 15.7 inches, width: 0.8 inchesM: Chest: 15 - 20 inches, width: 1 inchesL: Chest: 17 - 23.6 inches, width: 1 inchesNote: Leash is not includedNote: Please make sure to measure your dog for accurate sizing before purchasing to ensure the perfect fit. The size is manual measurement, there may be 2 - 3cm error Applicable Dog Breed: Universal Collar Type: Basic Collars Feature: Eco-friendly Pattern: Solid Season: All seasons Wash Style: Hand Wash Package weight: 0.171 kg Product Size(L x W x H): 13.00 x 9.00 x 4.00 cm / 5.12 x 3.54 x 1.57 inches Package Size(L x W x H): 16.00 x 13.50 x 4.00 cm / 6.3 x 5.31 x 1.57 inches Package Contents: 1 x Pet Flash Light Belt with Battery