If you decide to order your cover with a tail, you will need to secure it to either a deck or the supplied shelf as depicted below.
If you decide to order your cover with a nose and tail piece you will have the ability to secure it at both the front and back. The nose will come with a lock and key that will require some assembly on your part to place and secure the strike plate to your tub or deck.
If you have any questions please email customercare1@rhtubs.com