This is an Align T-Rex 450 White Replacement Canopy.  This canopy will fit the 450SA, 450SE, 450X, and 450XL series helicopters.  If your canopy is beginning to look a little rough, or if you want to jazz it up and make it stand out with a fancy new color scheme, this is where to start.  Decals and a smoked windshield are included.