2 panel x 4 panel size (the roughly 13.5″ Midlee Cage Panels). Assembled dimensions are 55″ x 27″. When making your own guinea pig cage, these liners are a must! Makes cleaning up easy! All you need to do is wipe. Cage panels sold separately. Cleaning these liners are an added bonus as it is incredibly easy. Clear out the debris and bedding inside. Spray with animal-safe cleaning; we recommend a half water/half vinegar mixture. Then wipe with a clean cloth