Question about L33T Castors for gaming chairs

I cannot answer your question definitively but if your Secretlab chair uses industry standard castors then toe they will fit.

They are brilliant and I keep crashing into other furniture if I push off or move without thinking what chair I am in. Also they are very kind to laminate floors. My old ones trashed the laminate flooring.

Test tip: if you have another chair with castors nearby. Pop pout one wheel from each and see it they fit securely in the other. If they do, there is the answer to your question.