... multi stem comforms ear Our earplugs are made of PU & Silicon with noise reduction up to 34dB, providing a comfortable all ... to pantone number;Soft PU material, rebound slowly and low pressure to ear canal;Packaging, polybag, plastic box, blister cases.PU ... -25 secondsCertificateCE EN352-2CordNylon, PVC Red, yellow, blue PU or Silicon Bullet Low profile Industrial Ear Plugs GJ-01