Mail Service US Postal Service First Class Mail® Estimated delivery 2-5 days*ROTOR SHAPED OIL CAP MAZDA ROTARY RX7 RX8 ALUMINUM Rotary EngineFeatures Rotor Shaped Oil Cap Material ALUMINUM FINISH POLISHED Weight 9 OUNCES! Rotor Diameter 72mm Rotor Thickness 32mm EXACT Proportions of the REAL ROTOR. FITS ALL RX VEHICLES