Behringer SKSBX7350 SP Stacking Beta Clamp Kit, 3 in Pipe Size HD, Smooth Bore, 316 Stainless Steel, Santoprene Cushion, Heavy Duty 20026501 Ear Plugs Noise Reduction Rating Ear Plugs Noise Reduction Rating 33 dB Earplug Shape Bullet Insertion Method Roll Down Reusability Disposable Cord Options Corded Earplug Size M Earplug Material Foam Earplug Packaging Bulk Bag Wrapped Pairs Earplug Pair Pack Type Plastic Bag Electrically Insulated No Band Color Purple Series SparkPlugs(R) Cord Material Plastic Band Material Plastic Cord Color Purple Standards ANSI S3 Small Flat Saws Arbor Shape Round Cutting Type Wet Dry Rim Type Segmented For Use On Concrete Type Reinforced Concrete Max Beta Clamp Safety Plate and (2) Stacking Bolts Insert Material Santoprene Metal Detectable Yes Maximum Operating Temperature 275 Degrees F Number of Mounting Holes 0 For Use On Pipe