4 pieces of piping bags, food grade silicone material, health and safety.4 different sizes: Extra Large / Large / Medium / Small, very easy to use.They have passed FDA authentication and have a smooth interior which improves product flow. Non-slip design for easy grip. The white semi-transparent silicone piping bags are ideal for decorating projects that can distinguish creams of different colors and it's easy to see how many are left.Reusable piping bags, easy to clean; ideal to decorate with a two-tone cream.Ideal for decoration ?: Wedding cakes, birthday cakes, cupcakes, hot chocolate, desserts, etc.These silicone piping bags compared to disposable piping bags:* Long service life* save money* Environmental protection* Robust and durable* very good for making butter cookiesFeatures ?:1. Made of harmless material, food grade silicone, BPA free2. Seamless sealing edge3. Quantity ?: 44.thickness: 0.4mm4.Size: Small (25x16.5cm) / Medium (30x17.5cm) / Large (35x21.5cm) / Extra Large (40x24.5cm)5. Suitable for any occasion: cookies, wedding cakes, birthday cakes, cakes, hot chocolate, festive desserts and other sweetsGreat decorative accessory for beginners, bakers or cake lovers.Package include ?:--1 x 10 inch silicone piping bags.--1 x 12 inch silicone piping bag.--1 x 14 inch silicone piping bag.--1 x 16 inch silicone piping bag.