Designed with flexible silicone material and ergonomically designed shape, this product should be both comfortable and functional for many users, which will avoid the risk of hearing losing. You can simply clean them with soap and warm water between use since it is washable and reusable, which is well sound blocking with its three-layer design. Made of silicone material, this product is flexible and long-lasting. The length of this product is 2.58cm, the width is 1.57cm, and the thickness is 2.67cm. It is suitable for working, sleeping, workshop, factory, industry and so on. Item Name: Ear Plugs Material: Silicone Features: Reusable, Noise Reduction, Comfortable Wear Size Details: 2.58cm x 1.57cm x 2.67cm/1.02" x 0.62" x 1.05" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Pair of Ear Plugs 1 x Storage Box