This is a 10x6 Airplane Propeller that is a "pusher" Prop (see COMMENTS).
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
INCLUDES: Two Carbon-Reinforced NYLON Pusher Propeller
SPECS: Length: 10"
Thickness at hub: 1/2"
Hole diameter: 1/4"