Abstract: An inflatable automobile warning reflector device, usable also as a floatation buoy, comprises an inflatable triangular body formed of three tubular sides joined at their ends to define a triangle. The front faces of the tubular sides forming the triangular body are covered with reflecting material. At two lower corners of the triangular body, inflatable L-shaped tubular supports project rearwardly to support the triangular body in an upright position on the ground and also to receive weights for anchoring the device. One leg of one of the supports serves as an inflating tube. A belt hook at the upper corner provides for hanging the device from a raised trunk lid of a car or other support.