● Basic Size (Can be changed to a perfect fit) Neck: 14cm Chest: 16cm Length: 9cm The basic size is for the mid-baby stage (around 4 months old). The harness plays an important role in connecting the owner and the meerkat. Please use the perfect fit size. You can also request changes to the pattern and size to suit your pet. Please note that there may be slight variations due to the handmade nature of the product. Please contact us via comment before purchasing to confirm the size.