snelms and addy (t)

how do you make snelms? and is 12k for addy (t) shield good deal? :?:

You use a chisel on a snail shell which you get from a snail. Snails can be found in morytania and Morytania swamp. Kill them and you’ll get the shell. 12k for addy kite (t) isn’t that good of a deal for the person that sold it.

I meant for the buyer (me)