Designed to meet requirements of hygiene. The MATFER polycarbonate decorating tubes are unbreakable and do not lose their shape. On account of their transparent nature, air bubbles can easily be spotted. They can be used with both nylon pastry bags as well as disposable pastry bags due to their large support roll. SET OF 24 DECORATING TIPS - POLY CARBONATE 12 plain (numbers U1-U12), 10 scalloped (A6, A8, B6, B8, C6, C8, D6, D8, E6, E8). 1 #2 leaf and 1 tube for yule logs. (See information on these codes on page 71-72 for shape results).