A mini-pump is a small, portable device used to inflate items like bicycle tires, sports balls, and inflatable toys. It typically features a hand-operated mechanism that allows users to generate air pressure easily. Mini-pumps are designed for convenience, making them ideal for outdoor activities or emergencies. These pumps often come with various nozzle attachments to fit different valve types, such as Schrader and Presta valves. Many mini-pumps are lightweight and can be attached to a bike frame or stored in a backpack, ensuring that users have access to inflation whenever needed.