This is the Bondhus 8-Piece Standard L-Wrench Set.  These are excellent wrenches, and they will make working with hex head screws much easier.  The ball end will let you turn the screw even when you can get at it from directly above.  This wrench set comes with a Lifetime Warranty from Bondhus.

Features:

• Screw turns much faster-no need to exit and re-enter screw, even when it is obstructed
• Corrosion resistant Proguard finish creates crystalline structure that doesn't allow water to penetrate
• Made from Protanium high torque steel
• Precision tip eliminates cut off burr problems
• Cases are marked and color coded, and lock into place
• Case may be used to increase leverage
• Includes .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64 and 5/32" wrenches
• Bondhus' lifetime warranty