Rollerblading is a recreational activity that involves gliding on inline skates, which have a single line of wheels arranged in a row. It can be done on various surfaces, including smooth pavements, parks, and indoor rinks. Rollerblading is popular for both fun and fitness, as it provides a good cardiovascular workout while improving balance and coordination. Inline skates typically consist of a boot, a frame, and wheels. Safety gear, such as helmets, knee pads, and elbow pads, is often recommended to prevent injuries. Many people enjoy rollerblading alone or in groups, making it a social and enjoyable way to stay active.