What is this heavy red LEGO piece with no obvious connectors? I got a bulk box of LEGO on eBay and this was in it. It has the LEGO logo at either end but the pegs at the bottom don’t connect to anything. It’s heavy, like a battery, but no connectors and it doesn’t come apart. It doesn’t appear to be magnetic. Any ideas?
It's a Boat Keel Weighted 8 x 2 x 4.