This open hole and tear-shaped 8-piece stainless-steel decorating tube set is made of seamless, 18/10 polished stainless-steel. They have precise and strong edges for finer results. Each tip has a 2⅜” height and comes with various openings. Round tips are great for writing, piping borders, filigree work, cornelli lace, lace work, outlines and fills, lines, balls, strings and stems, lattice work, micro piping and many others.