Are plastic knuckles effective because where I live brass/metal

What's the best object to use as 'sleeper' brass knuckles? All I can think of are extra large carabiners. - Quora

Is it punishable by law if I openly wear brass knuckles specifically as a way to discourage others from attacking me? - Quora

Are brass or carbon fiber knuckle dusters better in your opinion

NoMetalKnucks - Plastic Knuckles

Round Metal Knuckle Duster Outdoor Four Finger Ring, Self Defense

Are plastic knuckles effective because where I live brass/metal knuckles are illegal? - Quora

If brass knuckles aren't made of brass, are they still illegal? - Quora

Damage From Brass Knuckles: A Guide to Legality

Is Brass Knuckle an Effective Weapon for Self Defense? Counting

Are plastic knuckles effective because where I live brass/metal knuckles are illegal? - Quora

Can heavy rings do the same thing as brass knuckles? - Quora

Why are brass knuckles illegal? Do you think they should be? - Quora

Can I bring carbon fiber brass knuckles on a plane in Canada? (I'm 16 and the knuckles are legal to own) - Quora

Brass Knuckles: A Misunderstood Self Defense Tool?

Non-Metal 4-Finger Brass Knuckles Duster Paperweight Self Defense