Details about these switches Gateron Ink v2 Series Transparent Smokey Housing Switches The Gateron Ink switches feature a transparent smokey housing. These switches are made of a new type of plastic. The color of the spring inside the switch is made black in order to blend with the switch. This switch is very smooth, you can hardly hear the sound of the spring. The V2's now have an upgraded housing that helps make the contact leaves more secure. Contact leaves are still able to be pressed out with your thumb, but do not fall out while turning the switches upside down in our testing. Black Ink is a linear switch Actuation: 60g Bottom: 70g Travel: 4 mm Red Ink is a linear switch Actuation: 45g Bottom: 67g Travel: 4 mm Blue ink will make a clicking sound Actuation: 60g Bottom: 70g Travel: 4 mm Silent Black Ink is a linear switch Actuation: 60g Bottom: 70g Travel: 4 mm Add a bump inside to reduce noise Yellow Ink is a linear switch Actuation: 60g Bottom: 67g Travel: 3.4 mm