These single-use foam earplugs provide simple, effective protection against hearing damage by greatly reducing environmental noise. Highly visible orange and shaped to conform to the ear canal, the soft, slow-recovery foam is rated for a protection level of NRR 33 dB. Single-use disposable earplugs. 100% PVC-free polyurethane foam. Extra-soft, lightweight foam seals the ear canal without pressure. Bullet shaped provides a snug fit while gently conforming to the ear canal. Expandable, slow rebound foam provides the best combination of comfort and protection for most users. Made of soft non-allergenic material.