Masechet Keilim : Peirush Afikei Mayim

Perakim 1-5
The Mishnah with the commentaries of Rav Hai Gaon, the Rambam, the Rash, the Rosh, and the Maharam of Rottenburg, corrected from manuscripts with notes.
Together with the double-commentary of Afikei Mayim which explains the Mishnayos in short and long format.