AXIL X20 Monster Jam Earplugs Sparkle Smash. Simply choose which tip works best for you and insert these ear plugs in your ears total hearing protection. These are small handy and can go anywhere with you so you always have hearing protection when you need it. Specifications for AXIL X20 Monster Jam Earplugs: Manufacturer: AXIL NRR: 17 - 19 dB Quantity: 1 Size: One Size Fabric/Material: Silicone Features of AXIL X20 Monster Jam Earplugs Ultra-Comfortable Design Interchangeable Eartips Pocket Carry Case Water & Sweat Resistant Certifications ANSI CE EN352-2 AS/NZ Package Contents: AXIL X20 Monster Jam Earplugs 3 Sizes of Silicone Tips (S M & L) 2 Sizes of Foam Tips (M & L) Color-Matching Pocket Carry Case Instruction Manual AXIL X20MJ-SS: X20 Monster Jam Earplugs Sparkle Smash