Retractors, Franz Abdominal, eight interchangeable blades, folds for easy storage, Blades 1 and 2 - 2"x 1 3/4", Blades 3 and 4 - 2 1/2"x 1 1/4", Blades 5 and 6 - 3" x 2", Blades 7 and 8 - 3 1/2"x 1 1/4"