I received this in trade from Daniel (DPfarr) a few years ago (thanks Daniel). It has proven to be a good bloomer with nice big flowers. Across the "horns" is 35 mm. The plant is about 5 inches tall. Perhaps it is my culture (probably too much sun) but the plant never looks good due to yellow, spotty leaves. I probably need to move it but it flowers so well I am hesitant. Anyway, I like it.