The Upstand attachment tab that allows you to connect your Upstand to your bicycle.
Just in case you need some more, we have you covered. Free shipping (US).
NOTE: If you would like to place an order to Australia, please contact our distributor Full Beam Australia (firstname.lastname@example.org). He will take care of all of your questions regarding Australian orders and be able to get an Upstand to you faster than we could from the States!