Plastic bones/synthetic whalebone is sold by the yard ( and are a supper deal by the roll) and are of excellent quality. Plastic bones are some what a new product, in our opinion are excellent, compared to Rigilene and other plastic ( which we also carry and  like) bones found at North American these can be sewn through and are easily cut with scissors. The cut ends do not fray and any rough bit can easily be removed with a little file with some sandpaper or an emery board will do the trick too..