Unlike other metal straws, these are are made of 45% recycled steel (100% FDA Certified, 18/8 food-grade), plus they're actually made in the US. You won't find a more sustainable straw anywhere! 8.5" long, 1/4" diameter, rainbow or silver. **Please note that they are very slightly smaller than many other straws, so the natural straw cleaning brushes we carry do not fit into them. Regular nylon brushes do fit.