![Arbor Scientific Hook Collar](http://www.arborsci.com/cdn/shop/products/HookCollar1500x1000_1445x.jpg?v=1665768816)
Additional Details
13mm hook collar is useful for hanging cords, masses, pulleys, balances etc. from a support or cross rod. Solid nickel plated collar with adjustable hook has a knurled screw which makes it easy to securely tighten.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.