This is a Brooks handlebar bag. The items included are as shown in the images. You can attach it to your handlebars and start riding right away. The receiving screw in the second photo is missing, but there are no problems with its use. The following is a quote: Waterproof front bag with handlebar mount, perfect for long touring. This convenient front bag allows you to easily take out your luggage without having to stop and unpack. This Isle of Skye is the perfect size for storing maps, phones, wallets, and snacks, and with the detachable shoulder strap, it can be used as a convenient shoulder bag after getting off your bike. Easy to attach and detach to the handlebars with the KLICKfix compatible Ortlieb attachment system. Made with waterproof fabric that has passed the bluesign-certified 2000mm water pressure test, so you can rest assured even in sudden rain. MADE IN ITALY ・WIDTH: 260mm ・DEPTH: 170mm ・HEIGHT: 210mm ・VOLUME: 9 liters