Brass Pendulum Bob ball 1 inch diameter with Hook Brushes 2 x Knuckle fabric bandages

2 x Knuckle fabric bandages

Objective lens: 1 x to 4

Use it to teach student electrical knowledge

one to switch shield case

Brass Pendulum Bob ball 1 inch diameter with Hook Brushes 2 x Knuckle fabric bandagesIncludes: 1 x Heavy Duty Brass Pendulum Bob ball 1 inch diameter with Hooks. Rust Proof, made up of brass material which is long lasting. Used in number of applications in laboratory, home, general purpose or games. Premium Quality: Bob is made of high quality, heavy duty and durable brass. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes