This is replacement bow cover for the Hunter 170. The snaps are provided separately and must be installed in the cover to match the studs on your hull. 15 snaps are provided but if you need more please let us know in the comments box at checkout.
Installing snaps in canvas is easy with the right tool, which are available here.
Please check to make sure the part you're replacing looks like the one in the photo. There may be small differences due to manufacturer upgrades and redesigns.