Unstudded winter tyres with a width of 295 mm, diameter of 20" and a profile of 0%. The load index of the tyres is 110, which means that it can withstand a fairly high load.
From Tyres
Hankook Winter i*cept evo3 X W330A (295/40 R20 110V)
This product is also available at 3 unverified merchants.