This is a Laowa lens that has a 0.09-metre minimum focusing distance and a 90 mm maximum focal length. If you want to use a filter on the lens, then the filter size is 67 mm.
From Photospecialist
Laowa 90mm f/2.8 2X Ultra-Macro APO Lens Canon RF
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Laowa 90mm f2.8 2x Ultra Macro APO Lens for Canon RF