glass1. SIZE: The size to fit spice rack, cabinet and countertop. Make your kitchen neater.2. MATERIA: Our glass spice pots are made from Lead-Free durable glass. The bottom is thickened by 6 mm to make the spice pots stronger and not easy to break. Suitable for storing all kinds of condiments and spices like salt, sugar, pepper, garlic power, ice cream toppings etc.3. TRANSPARENT SEASONING BOX: Easily distinguish variety of condiments in the Kitchen Seasoning Box. Each box comes with spoons to prevent odor4. SEALED & NON-SLIP: Each Condiment Jars has a sealing rubber ring on the lid, which can make the lid more airtight to prevent spices from deteriorating and damp.Keep the spices fresh. The bottom of the tray are equipped with rubber anti-skid pads to make it stable and not easy to slide.