2 Different blocks.  One completely blocks all trem movement (good for changing strings) and one which blocks pull backs (good for use with a d-Tuna).

They fit my 1984 Kramer Pacer Deluxe and will likely need customizing for your guitar and route cavity.

https://www.tinkercad.com/things/0uuFDirXdnM-floyd-rose-block

https://www.tinkercad.com/things/0lnd0hw60Ry-floyd-rose-block-dive-only