These are Durock gold-plated PCB mounted (screw-in) stabilizers. They come pre-clipped, no need to clip these stabs. The V2 stabilizers have an improved housing to help prevent wire popping.
The V2 stabilizer kits also come with washers and include a 7u wire. The 7u wire does not come with its own housing, it is only the wire. Now you can choose to use either the 6.25u or 7u wire for your build. Choose between smokey or clear housing.
Make sure you know what kind of stabilizers your PCB supports, most mass produced keyboards, like Drop ALT/CTRL, use plate mounted (clip-in) stabilizers. While most DIY keyboards use PCB mounted (screw-in) stabilizers.
4x 2u stabilizers
1x 6.25u stabilizer
1x 7u stabilizer (wire only)