Material: Metal, Plastic Red 1 pc(s) - Physically blocks access to a Mini DisplayPort or Thunderbolt port- Quick and easy to use- Consists of 4 locks and 1 keyWith the LINDY Mini DisplayPort & Thunderbolt Port Blocker, you can quickly block open ports and easily prevent users from connecting cables, devices or inserting foreign objects without permission.To use, simply attach a blocker to the key and plug it into the port. Hold the blocker in place and pull away the Key. To remove, simply insert the Key back on to the blocker and pull it away. Easy! Features Material Metal, Plastic Product colour Red Packaging data Quantity per pack 1 pc(s)