Two in number but I thought I had a couple more.
250mm overall length and 90mm from the bottom of the foot to the inside top. These are 40mm wide and made from 4mm thick stainless.
£5 each. Postage at cost or pick it up yourself.
I'll post a picture last as the ribnet app keeps crashing when I take a photo
Looks Slow but is Fast
Member of the ebay Blue RIB cover club.