this is a set of 4 wheels and snow rores for a cadillac srx. the pattern is 6x120. The tires are all around 6/32nds. The rims have flaking chrome , but all have sensors. The tires are very good in snow and ice, but they have the snow tire noise. These are great winter tires, but are noisy like most snow tires. They have all the winter markings. They are 18 inch.