Material: Silicone<br> Noise reduction rate: 40%<br> Function: sound insulation, noise reduction, waterproof<br> Use range: sleep, rest, work, exercise<br> Efficacy: sound insulation, noise reduction, waterproof<br> Packing: plastic storage box + color box<br> Whether washable: washable<br> Earplug head shape: umbrella<br> Noise Reduction Rating (NRR):40%<br> Specifications:<br> 1. Environmentally friendly silica gel, washable, can be washed repeatedly after use, protect the health of the ear canal<br> 2. Immersive noise reduction earplugs, stop the hustle and bustle of quiet life has never been so simple<br> 3. sound insulation upgrade effective filtering of living noise innovative sound insulation core accurate isolation of all kinds of living noise<br> 4. Ergonomic design, comfortable to wear, fitting ear shape flexible tail precision fit ear ridge rolling does not fall off<br> 5. Transparent shell, compact and easy to carry transparent shell packaging out of easy to carry<br> Package Included:<br> 1 * Earplug Set<br>Note: <br>1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. <br>2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!<br>About Shipping: <br>1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly.<br>2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.<br>3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 380 hours, wish you a happy shopping!