The rubber gasket or seal for the HMV No4 soundbox is a crucial part for maintaining the integrity and functionality of vintage gramophones. This product comes in a pair, ensuring a secure and airtight seal to preserve the sound quality of the records. Made from 2mm silicone rubber, this gasket is designed specifically for the HMV No4 soundbox, providing a perfect fit and long-lasting durability for your gramophone. Made in the UK