TOOLS where did they come from & how much did they cost? 1)Small Teflon Folder, Talas $19.50; 2)Large Teflon folder, Talas $21.50; 3)Teflon Rib, Colophon $24; 4)Teflon Square, Colophon $20. Teflon tools don’t burnish as bone tools do & the diff. shapes make some tasks easier. I use the rib when gluing large areas; the thin, square edges of the 1st 2 folders for box making & for gluing material into small, recessed areas; the little square is my box making go-to guy & for folding sections.