Gator Lite Spinner 63mm (2.5") Aluminum Backplate 

These plastic spinners feature a molded plastic spinner cone with a machined aluminum backplate.  They are available in 7 different sizes and 5 different colors to fit a wide range of aircraft models.  The Spinner cones on the 45mm and larger sizes are attached to the backplates with a pair of M3 x 6mm Phillips head screws.  The 38mm spinners use a pair of M2.5 x 4mm Phillips head screws to hold the spinner cone to the backplate.  The aluminum backplates have lightening holes to decrease weight and rotational mass, and have a raised knurled area on both sides, around the center hole, to provide a firm grip on both the back side of the propeller and on face of the motor’s prop adapter.  The spinner backplate has an 8mm hole in the middle and comes with a set of plastic reducing adapters so they can fit onto 6mm, 5mm, 4mm or 3mm motor shafts.

The 63mm spinners have a backplate that is 63mm (2-1/2 inches) in diameter with an overall length of 62.2mm (2.45 inches).  The complete spinner weighs 27.6 grams or 0.97 ounces.