This amazing lid helps to prevent your drink from spilling by creating a vacuum and clinging firmly to the top of any mug, cup, tin or jar sealing it air tight. Made from top quality silicone which is re-usable and washable this is a fantastic promotional item and has been nominated in the top 5 ‘Most Innovative Products’ in industry awards. This product is perfect for care homes, hospital trusts, oil rigs, ICT companies, general offices, and any companies with strict health and safety procedures.