four pin bottom bracket tool

I found this in the depths of my toolbox.

Pretty sure I bought it when I was looking for a freewheel tool, but it obviously didn't fit as it hasn't been used.

It measures 41mm across the pins.

If it's any good to you, I can post it for a fiver.

thanks for your helpful reply and it looks just the ticket but if only it were 31mm on the diameter, what you have I believe is a BMX b/bracket cup remover for a 3 piece crank same design for what I need but for oversize b/brackets....