These are lead no?

Tungsten

Ive always loved Reins, everything they make is quality and I favor the tapered slim DS shape weight over a non tapered shape, especially for free rigging.  Ive got some Picasso and other brand weights in order from TW that I havent opened and I suspect they will perform just as well.  One thing figured out with free rigs, is that a slightly heavier weight when compared to what you normally use on T rig will help, particularly when working small areas. If you combine a floating bait with a heavier weight it allows you to work that bait up and down the entire water column without moving the weight at all.  A heavier weight will also break free of the bait faster and drop straight down.

I use the slim ones when fishing grass and the teardrops around rock.

We have round open eye tungsten weights for this and dropshot.

 

https://siebertoutdoors.com/products/ols/products/tungsten-skinny-dropshot-weight-5-pack