This is the amazingly popular Swan PanAsia Sleeves, finally available in the USA! You are getting product code SWN-014. These are Swan Card Sleeves: 52x52 mm -160 per pack.

Yes these were GREAT for Kingdom Death's gear cards!  There are 139 cards in the base game + 88 more gear cards in the expansion.

Size" [Size mm]
Card type (Base) (+expansions)
[Total]

2" x 2" [50.8mm x 50.8mm]
Gear (139) (+88 expansion approx)
[+227]

If you are looking to sleeve the standard cards in the game you can find them HERE.

Size" [Size mm]
Card type (Base) (+expansions)
[Total]

2 1/4" x 3 1/2" [57.15mm x 88.9mm]
A.I. (155) (+348 expansion approx)
Hit Location (136) (+343 expansion approx)
Resource (39) (+102 expansion approx)
Innovation (25) (+35 expansion approx)
Hunt (?) (A few mentioned in expansions)
(+355) (+828)
[+1183]

Wanna go all out and sleeve the settlement cards?  Sorry, not us!  You can get them on Amazon HERE.

3 1/2" x 5 3/4" [88.9mm x 146.05mm]
Settlement Event (?) (+86 expansion approx)
[+86]