This is a 15.5x12 four-bladed propeller. It is a"tractor"(not a "pusher") prop.

FEATURES: Computer-optimized design gives these props a thinner profile and
            more "bite" with less noise.,
          Lightweight molded nylon construction reduces rotating mass
            for higher output and longer life.
          Reinforcing carbon fibers help maintain true, constant pitch
            at any rpm.

INCLUDES: One carbon-reinforced NYLON four-bladed propeller

REQUIRES: ALL props require balancing, this is VERY important, use TOPQ5700.
          May need prop reamer, use GPMQ5006 (SAE) or GPMQ5007 (Metric)

SPECS:    Length:  15.5"                     Pitch: 12
          Thickness at hub:  1/2"            Hole diameter:  1/4"
                                                                    04-24-98kzh