Silvertone Tiwst Bugle Beads, 1.5x5mm, 28 grams

These are a silvertone metal, they have a nice look, but I am not sure what base metal they might be.  They are about 10 years old, and have not tarnished, so probably not sterling.  I am not sure how many in a package, (250?) they weigh 28 grams. 5mm long by 1.5mm diameter.  Inexpensive way to add that metallic touch to a project!