The stitching is tight, the fabric is fabulously soft, the grommets are tight and well placed. I use these for my pets and for our clinic cages. If you are in any way concerned that your pet won't fit, don't be. I have 2 rather large ferrets and they comfortably fit into these hammocks. They will comfortably fit guinea pigs, rats, chinchillas, ferrets, multiple sugar gliders or a squirrel.