Three possibilities, basically.
1. A power resistor. Higher wattage resistors are generally larger. The colour bands are a bit weird, though, and it appears to be a five-band resistor code. The rightmost three I can tell are yellow, green and blue, but the other two are a bit iffy. The first two could be brown and gold or black and brown. I'm leaning toward the former, since the latter is invalid. Using a five-band calculator and those colours, that makes this a 65.4 ohm resistor read from right to left, the other way doesn't seem to be valid.
2. It's a capacitor. Axial, colour-coded capacitors are rare but do exist, and it does have the right number of stripes. I don't think this is the case, though. I looked up a chart and going blue, green, yellow, brown, black makes it a 650000pf (0.65uF), 1% tolerance, 0 temperature coefficient capacitor.
3. The last possibility is that of an inductor or choke. These look similar and can have stripes. This one doesn't have the right number of stripes, though.
