Product overview Slotted physics hanger designed for laboratory and classroom demonstrations. Equipped with a sturdy hanger and precision slots to hold mass discs and extenders securely. Key benefits — why you need it Makes demonstrations of force, balance, torque, and traction simple and repeatable. Slots allow quick placement and removal of mass discs, saving time during experiments and reducing handling errors. Polished iron surface with smooth edges is easy to clean and safe to handle, minimizing risk of cuts or snags. Durable construction and detailed workmanship ensure reliable performance in repeated classroom or lab use. Main features Slotted design: multiple slots let you position mass discs precisely for pattern weights, balance, and rotational experiments. Hanger included: ready to use for suspending the assembly in pulleys, stands, or support frames. Material and finish: iron construction with a polished finish and smooth edges for durability and safe handling. Compatibility: accepts various mass discs and can be used with extender devices (extender devices for men), enabling a range of experimental setups. Easy maintenance: polished surface wipes clean quickly and resists corrosion under normal lab conditions. How it solves common problems Reduces setup time by allowing rapid, tool-free swapping of weights. Improves experimental accuracy through consistent positioning of masses. Lowers injury risk compared with unfinished metal parts thanks to smooth, polished edges. Extends the range of experiments by accepting extenders and different mass discs without modification. Typical use scenarios 1. Classroom demonstration of balance and torque: attach the slotted hanger to a support and place mass discs in different slots to show how force and lever arm affect equilibrium. 2. Laboratory traction and rotational experiments: use the hanger with mass discs to create controlled loading for pulley or rotational-motion setups; slots make it easy to vary the load quickly. 3. Pattern weight exercises and equipment calibration: arrange mass discs in specific slot patterns to teach concepts of center of mass, moment distribution, and repeatable test configurations. Practical notes Handle by the hanger and wipe with a damp cloth to keep the polished surface clean. Compatible with a wide range of removable mass discs and extender accessories; verify fit of specific discs and extenders before use. Built for educational and lab environments where reliable, safe handling and repeatable setups are required.