It looks like you’re describing a 0?Offset Ring Wrench (10x11mm), also known as a box spanner. Here’s a quick overview based on the details you provided:

RING WRENCH 10*11MM | BOX SPANNER FEATURES:

• Ideal for Crowded or Tight Spaces: The offset design allows you to work in areas where a straight wrench might not fit or provide sufficient leverage.
• Ultra-Compact Ring Head: The compact head design improves access to nuts or bolts in confined spaces.
  Material: Made from chrome molybdenum alloy steel, which is known for its durability and strength, ensuring the tool can handle high-torque applications.
• Chrome Plated: The chrome plating provides added protection against rust and corrosion, increasing the longevity of the tool.
• Metric Size: 10mm x 11mm ring ends, conforming to DIN 311 standards for a reliable fit.

BOX SPANNER 10*11MM APPLICATIONS:

This wrench is usually employed in tight or difficult-to-reach areas, such as when repairing machinery or cars with limited access to bolts or fasteners.

Let me know if you need further details or specifications!