PastryGear Grip-Pro 21-Inch Anti-slip Ultra Thick Disposable Pastry / Piping Bags with Dispenser (Roll of 100 Pcs) Thickness: 0.08mm, Bag size: 280mm X 530mm / 11" X 21" Made of FDA approved plastic material with sturdy texture, safe for food contact Unique tacky outer texture for anti-slip and perfect gripping Strong welding and ultra thick texture for burst resistance Workable with most kinds of decorating tips and couplers