Fat Daddio's Polycarbonate Pastry Tube Set with Hinged Box, 12 Piece Manufactured from high density polycarbonate plastic Seamless design ensures they never lose their shape Transparent color allow you to see any air bubbles Works with any bag; 100-percent dishwasher safe Set includes-F8/E8/D8/C8/B8/A8/F6/E6/D6/C6/B6/A6