EK-Quantum Torque Plug w/Cover 10-Pack - Black 3831109861189 EK-Quantum Torque Plug w/Cover 10-Pack - Black is a premium Quantum G1/4" plug set of 10 pieces for closing the unused ports on your water cooling equipment. Ideal for when you don’t want G1/4" plugs to be seen. These black ABS covers are in the shape of the EK logo, provide a stylish look, and are easy to align in any direction so that the EK logo is showing in the proper orientation. Plugs are made from nickel-plated CNC machined brass and sealed with quality rubber O-ring. The covers are made of black ABS plastic. Specifications: General: Threading: G 1/4" Thread length: 4.5mm Material / Design / Color option: Black