VeriShield™ 100 Series Passive Earmuffs, 24 dB, Black, Folding, VS110F no checkout the tie wires are essential the tie wires are essential for fastening items together Wires have a high level of strength and are capable of handling heavy items Used to provide leverage on hand operated valve wheels Permits a smooth snap hammer action to make opening and closing stubborn valves easy The special shaped opening in the wrench reduces the chance of slippage when working in overhead or crowded positions Large dimension range provides comfortable fit that is 17% more adjustable than earlier versions Wide cup opening area increased by 16% over earlier versions New unique memory foam combines denser and softer foam than previous models suitable for wearers with sensitive ear canals or for wearing with hearing aids Air Flow Control technology for optimum attenuations across all frequencies Available in over the head