Keep your pet safe and yourself stress-free 3/4" Waterproof High Flex e Collar - Easy Onn/Off It keeps even pressure on the receiver, very easy to thread the receiver on with Phillips Head Screw Works with all E Collar Systems that use a 3/4" Strap Wheel Lock for extreme grip and optimal contact Elastic traction system, lets the dog breath, No over-tightening possible, Practical quick closure for same contact every time These collars come with adjustable straps, bungee features for flexibility, and toggle closures for secure fitting. They are designed to provide GPS tracking functionality to help owners locate their pets if they wander off. These GPS eCollars are useful for pet owners who want to ensure the safety and security of their dogs, especially those with small neck sizes where finding a proper fit can be challenging. Some features include: GPS Tracking: Allows owners to track the location of their dog via a smartphone app or handheld device. Adjustable Straps: Ensures a proper and comfortable fit for dogs with small neck sizes. Bungee or Elastic Material: Provides flexibility and comfort, especially during movement. Multi-Hole Design: Offers various adjustment options to accommodate different neck sizes. Surefits Toggle Closure: Ensures the collar stays securely fastened around the dog's neck. When purchasing such a collar, make sure to check the specifications to ensure it meets your requirements, including compatibility with your smartphone or other tracking devices, battery life, and any additional features such as waterproofing or activity monitoring. Additionally, always follow the manufacturer's instructions for proper fitting and use of the collar to ensure your pet's safety and comfort. Available in 8 Bright Colors & 8 Reflective Colors. Abraison- resistant, Electric shock resistant. Made in the USA with pride!