Size: S--Leash is 135cm/ 4.4ft length, 3/8 inches/1cm width; Neck is 4.3-5.12 inches/11-13cm, Chest is 4-5.5 inches/10-14cm; Guinea Pig Size: B07HVSF7N9 | Superior Quality - It is made of high quality cotton cloth and short plush lining, soft texture and ideal both for four season due to breathable and comfortable feature. | Dual-Usage: Can use it as small pet harness leash or charming outfits for your cute furry friends; with a bright beautiful color and cute bowknot decoration, is really adorable and elegant, will be a perfect gift for your lovely pets | Easy to use and its 2 secure stickers allow you to remove it with ease. Always walking your pet also make the pet's movements more agile and lively, also avoid obesity. | This small animal harness and leash suitable for small ferret, rat and other small animals. To reducing tugging and pulling on your pet's neck and keep your pet safe and comfortable. Nice for walking, jogging.