The REVELL 85-5810 SR-71 Blackbird model kit is a 1/72 scale plastic model of the iconic Lockheed SR-71 Blackbird reconnaissance aircraft. It's a skill level 4 (advanced) kit, featuring detailed surface elements, optional position canopies, and separate control surfaces. The kit includes a D-21 reconnaissance drone with a ground trolley and decals for one USAF aircraft. The model is molded in black and clear plastic and includes waterslide decals. 

Here's a more detailed description:

• Scale: 1/72, meaning the model is one seventy-second the size of the actual aircraft. 
• Skill Level: 4 (Advanced), indicating it's suitable for modelers with some experience. 
• Aircraft Type: Lockheed SR-71 Blackbird, a high-speed, high-altitude reconnaissance aircraft. 
• Included: The kit includes the main SR-71 model, a D-21 drone with a trolley, and waterslide decals. 
• Features: Features include accurate surface detail, optional position canopies, detailed landing gear and wheel wells, and separate control surfaces (though they can only be posed in neutral position). 
• Decals: Waterslide decals are provided for one USAF aircraft. 
• Molding: The kit is molded in black and clear plastic. 
• Additional Information: The SR-71 Blackbird was designed to fly at Mach 3.2 and altitudes up to 85,000 feet, and the kit accurately reflects the sleek lines of this unique aircraft.