2 Lighting Modes. Built in visible spotlight,our retractable walking leash clears your vision within 5m/16.4ft in the dark,which helps to notice potential dangers in the dark,clean up dog poop conveniently etc.. Featured with a cool ambient RGB light(green/blue/purple/yellow/red/cyan change gradually),the rope case shines brighter in the crowd,creating a sense of social atmosphere. 16FT Ultra-Long Extendable Range. The rope can be extend ultra-long range up to 16ft/5m,allowing your dog to roam freely and giving them large playing area. Suitable for dogs between 66lbs and 110lbs. One Button Locking System. One button control allows the dog leash to be adjusted to a comfortable length with ease or pull back your dog when needed like emergencies. Quick lock and unlock with U-shaped leash outlet,easy to operate. Non-slip & Ergonomic Handle. The ergonomic handle fits perfectly for your finger and offers strong grip strength,reaching anti-slip effect while ensuring comfort for pet owner. Durable & Safe. The imitation nylon rope is tough enough to withstand the pull of your four-legged friend,hardwearing enough to prevent it from fraying too easily. With this strong and durable dog leash,you can enjoy a safe walk with your naughty dog,perfect for walking your dog in open area such as the park,garden,beach,etc..