An L-shaped spreader is a laboratory tool used for spreading or scraping materials, such as media or agar, in Petri dishes or other containers. It is shaped like an L, with a flat blade that is used for spreading and a perpendicular handle that provides leverage and control.

The blade can be either straight or curved and can be made of metal, plastic, or other materials, depending on the application. L-shaped spreaders are commonly used in microbiology and life science laboratories to prepare and distribute culture media, isolate colonies, and perform other tasks that require precise spreading or scraping.

The design of the L-shape allows for easy and efficient spreading, while the handle provides a comfortable grip and reduces the risk of contamination.