Kitchen Life 12 Pieces Acrylic Special Series Spice Jar Set has a Leak Proof and Vacuum lid. It is airtight and your spices and supplies always remain fresh. The product is not glass. It is Thick Plastic and is medically approved to be the healthiest plastic. Labels are washable. It is 24 pieces. Package Content: 250 ml 12 Pieces Product Dimensions: 250 ml: 11x6 cm