This is the Dubro 2-1/4" Diameter Black Spinner.                  
                                                                               
PRODUCT ATTRIBUTES: Constructed of 100% Virgin Nylon for maximum strength.               
          Pre-trimmed for two blade propeller.                                 
          Uses a unique nylon insert lock design for attaching the backplate   
            and spinner-giving a solid and secure hold.                        
          Four shaft adapters, 6mm, 1/4", 7mm, 5/16", eliminates need to drill 
            out backplates.                                                    
                                                                               
WHAT'S INCLUDED: One Dubro 2-1/4" Diameter Black Spinner with backplate, four shaft   
            adapters, and two 3.5mm x 18mm socket head cap screws.             
                                                                               
WHAT'S REQUIRED: Aligning pins in nose cone to backplate and fastening into pre-      
            installed locknuts with the two socket head cap screws.            
          7/64" ball driver                                                    
                                                                               
PRODUCT SPECIFICATIONS:    Diameter: 2.25" (57mm) at base                                       
          Length:   2.44" (62mm) from backplate to tip                         
                                                                    
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BOX DIMENSIONS:    4.00" W. X   2.50" H. X   6.00" L.
BOX WEIGHT:     .10 LBS.