I don’t know what this was

I witness a red and silver object pass over me as I was walking through flat open fields the object was probably a few hundred metres in the air silent and I would describe it as clearly metal kind of reflective and almost like two spheres one each end joined by a tube in the middle it was a clear day hardly any wind and it travelled straight and fairly quick as I watched it for at least twenty to thirty seconds as it travelled over land from the direction of conningbrook lakes heading on a straight path towards the east I really don’t know what it was the speed was really hard to explain it definelty was not a helicopter or glider or plane and I would estimate the length to be approximately 20 feet long by perhaps 10 feet deep or tall there was no seems or rivets it appeared to be completely smooth with the silver on the bottom and the red on top however the reflection as it was travelling over me was also quite strange almost like glass.