Large swivel castors (Eccleshill BD2)

I had these made for a sofa bed which I had at the time, but they didn't work. They've been sitting in a box ever since. It would be great to find someone who could make use of them... they are supposed to be pushed into a hollow "leg", about 5.5 cms diameter, the castors are 6.5cms diameter, and they are quite sturdy items, intended to support the weight of the bed plus occupants. If you think you can find a use for them please contact me and include a mobile number in your reply. Collection only please. Here's hoping...!