Free Concrete Weight with embedded galvanized eyelet. Great for use as a permanent boat anchor. I used it to tie down the tail of an airplane while jacking it. Weighs about 220 lbs. Available for pickup at Montgomery County Airpark, Gaithersburg.
There's a tugboat, huh, huh, down by the river dontcha know
Where a cement bag's just a'drooppin' on down
Oh, that cement is just, it's there for the weight, dear
Five'll get ya ten old Macky's back in town.