Create clean underside angles and smooth transitions with the LEGO® Slope Inverted 45 2 × 1. This compact inverted element is widely used for vehicle bodywork, aircraft, architectural details and advanced SNOT building techniques where conventional slopes cannot achieve the required profile. Part number 3665 identifies this specific element.
Part Details
Inverted 45-degree slope with a 2 × 1 footprint
Suitable for vehicles, buildings, aircraft and custom creations
Ideal for underside shaping, roof details and SNOT building techniques
LEGO® part number 3665
Expand Your Building Options
Browse additional angled elements in our LEGO® Slope Bricks collection to create smooth transitions, architectural details and streamlined custom models.
Choking Hazard: LEGO® pieces are not suitable for children under 3 years old due to small parts that may pose a choking risk.
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