The Spinbar Restrainer fits ergonomically in one hand, and when placed alongside the outer wall of a mixing vessel it retains and secures the stirring bar in position. After the vessel is drained, the confined stirring bar is securely retrieved from the vacant container without contaminating the solution. It houses a strong magnet that restrains magnetic stirring bars up to 80 millimeters (3-inch) long. Don’t lose magnetic stir bars down lab drains and eliminate the splashing hazard when pouring out of mixing containers.
Magnetic Spinbar Restrainer
Keep magnetic stir bars inside flasks while emptying, very handy. Place this spinbar restrainer on the OUTSIDE of your mixing vessel. The magnetic spin bar will be attracted to it and will stay in place as you pour.