Noise-canceling earplugs:Brand NewMaterial: liquid siliconecolourblackEarbud size: about 12x20mmSNR (Signal Noise Ratio): 20dBWaterproof: yes Feature: - Musicians and live concerts noise reduction and unique design take into account the resonance frequency of the ear fading sound evenly. - provides motorsports and racing enthusiast universal gadget with the advanced filtering technology in earplugs self, defense and clear communication. - The strong, soundproof earplugs set provides effective protection against high-frequency louder and excitement while you can still hear the full sound spectrum. Specially designed, soundproof PRO set for construction work. - to noise at home, in dormitories, on board airplanes, factories, construction sites and downtown areas to avoid a good helper. - Protect your hearing from damage or loss. - Gebildet from the secure soft and odorless plush skin-friendly material, not rubber. - Hypoallergenic and waterproof. - Can be used repeatedly and cleaned. Package included:1 pair of noise canceling x earplugs1 x aluminum alloy bottle Note: Please allow 1-5mm error due to manual measurement.The object color displayed in photos may look slightly different on your computer monitor since monitors are not the same calibrated.