Quickly and easily attach headgear or bracket accessories on hard hats with universal slots Features: To attach welding helmets, headgears or brackets to a hard hat.Fits easily on to most hard hats with universal slots.Quick and easy snap on and off feature.Will accommodate narrow welding helmet if used with the extension Specs: Dynamic Cap Lock Adapter- For attachment of welding helmets to hard hats- One Pair Case Quantity: 100