Bird Nest nozzle; flat tip (Ø 14 mm) with 7 holes (Ø 1.5 mm) BIRD NEST PASTRY TIPS Or Vermicelli type, flat tip. Pierced with 7 holes. Polycarbonate.Transparent material: easy to spot bubbles. Can be used with both nylon pastry bags as well as disposable pastry bags due to their large support roll. Designed to meet requirements of hygiene. Unbreakable they do not lose their shape.