This is the Bondhus Gorilla Grip Standard Fold Up Hex/Allen Wrech Set.  This set includes 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, and 1/4-inch wrenches.  These are very high-quality, and this set is very convenient as well.  These come with a Lifetime Warranty from the manufacturer.

Features:

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  Maximum strength Protanium Steel construction: High Torque Steel that's 25% stronger than the competition
  
  
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  Corrosion resistant black Proguard finish creates crystalline structure that doesn't allow water to penetrate
  
  
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  Precision tip eliminates cut off burr problems
  
  
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  The rotation feature: 90 degree stop feature converts the tool into a non-stop, time-saving spin wrench
  
  
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  Space age composite handle "stronger than steel"
  
  
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  Lightweight ergonomic design handle is not temperature sensitive when working in extreme hot and cold conditions with bare hands
  
  
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  Turn & Flip feature: means not having to disengage the tool from the fastener when working up against walls or other obstructions
  
  
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  Tool isolating flutes and adjustable key tension
  
  
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  Bondhus' lifetime warranty