Desiccant Cap and Cover is manufactured by Pretty Pack Well Pvt. Ltd. The cap is air-tight. It is better to keep the medicines dry. The cap comes with visor [brim] for easy open. Pretty Pack Well Pvt. Ltd., an ISO 9001: 2000 registered organization manufactures a wide range of plastic injection & blow moulded air tight and tamper-proof containers, cups, closures and measuring cups.