1Soft Sponge: These sleeping ear plugs are made from premium sponge material, which is soft, healthy and comfortable to wear. 2Sound Insulation: These sleeping ear plugs provide good sealing performance and excellent sound insulation effect. 3Widely Used: These sleeping ear plugs are widely used in sleeping, snoring, swimming, studying, bathing, traveling, noisy activities, concerts, flying discomfort, motorcycles, etc. 4High Elasticity: You can arbitrarily shape these ear plugs into a shape that suits your ear size. After use, put it back into the storage box, and it can rebound back to its original shape after 1 minute. 510 Pieces: You will receive 10 pieces sleeping ear plugs that could meet your different needs in different occasion, suitable for home, dorm and office, etc.