I tried out some of the Wexford cards today. They're generally the same exact thickness and general quality as the Amazon Basics and the Oxford branded cards I've got. They're probably closer in quality to Amazon Basics than the Oxford which are a bit "tighter weave". I've got almost a dozen different brands, perhaps one of these days I'll set up my microscope along with a camera and do photos of the differences in paper quality.

The Wexfords have some of the more textured feel of any I've seen out there. They have the standard red top line, but the rest of the lines seem almost grayish or nearly black compared to most other cards which have a medium to lighter blue coloring. The Wexfords also have an only very slightly thinner than usual 1/4" spacing. (It measures out to 0.2375 inches between lines rather than the typical 0.25" most American cards would have. This nets out to be a 6mm line which makes me think it's a more European/Japanese/Chinese card than an American one despite the 4x6" dimensions.)