This is a Bondhus 7-Piece Metric Hex Balldriver Set.  These are for hex head socket screws, and are very strong.  This set includes vinyl pouch to keep them in.  They have a precision tip.  This set includes a 1.27, 1.5, 2, 2.5, 3, 4, and 5mm sizes.  These are covered by a lifetime warranty through Bondhus.

Features:

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  Color coded and ergonomically designed handles proportioned to provide maximum torque without breakage
  
  
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  Corrosion resistant Proguard finish creates crystalline structure that doesn't allow water to penetrate
  
  
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  Made from Protanium high torque steel
  
  
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  Precision tip eliminates cut off burr problems
  
  
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  Used for hexagonal socket screws
  
  
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  Includes 1.27, 1.5, 2, 2.5, 3, 4 and 5mm sizes
  
  
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  Bondhus' lifetime warranty
  
  
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  Packaged in a vinyl pouch