E-A-R Classic ear plugs were the first foam earplugs ever and are the most popular in the world. Today, they are still the leading seller across the world because of their outstanding advantages including: Excellent protection with an NRR 29dB; Easy to use cylindrical shape; Soft, low pressure for all day comfort; Non-allergenic, moisture resistant and non-flammable; Yellow for high visibility. E-A-R Classic earplugs are proven performers. Their proven size has been tested to be the right size to fit the widest range of ear canals while the cylindrical shape has been shown to protect better than tapered plugs. E-A-R is the only manufacturer to make its own foam, so it can regularly test for optimum and consistent performance. No wonder they"ve been the most requested hearing protector in the world for over 30 years.SuperFit offers the surest fit, highest protection and the greatest comfort. A great idea just got better. Because now the most comfortable earplug with the industry"s highest protection level can take the guesswork out of proper fitting, too. The key is the patented "fitting ring," an E-A-R exclusive. When the plug is inserted in the canal so that no ring is visible, the best fit is achieved. One look shows wearers and supervisors if the plug is providing the best possible protection. It"s simple and sure. Price is for 200 pair in pillow packs.Features: Slow recovery PVC foam provides comfort with low pressure. Flame retardant - critical for storage considerations.Specification: Meets ANSI S3.19-1974 StandardsSold: 200 Pair