Features on the item:

• 1/4" Square drive sockets with ball lock
  
• Suitable for 1/4" square drive sockets with ball lock
  
• Made of chrome vanadium with a brushed chrome-plated finish
  
• 8794 SA Zyklop extension, 1/4"
  
• For 1/4" square sockets with ball lock
  
• Equipped with ball stop groove
  
• Chrome vanadium steel, matt chrome-plated
• Wera Zyklop extension with easy-to-grip free-turning sleeve for rapid tightening and loosening of screws and nuts.