Spring, tension, 8.25" long, 1.00" OD, .125" wire, 12 pound/inch spring rate

Description

Spring, tension, 8.25" long, 1.00" OD, .125" wire, 12 pound/inch spring rate.  The ends of the spring (last 6 coils) are tapered down to .91" OD. Condition is Used. The finish is either zinc plating or galvanizing.  They were originally used as trampoline springs.  The plating is weathered but not rusty.
These springs are tight-wound, so they have a little preload on them.  I measured the spring force at
16 pounds to move it .50 inch
22 pounds to move it 1.00 inch
34 pounds to move it 2.00 inch
I have about a hundred of these.  I've never sold bulk items, so I'm not sure how eBay tries to do the shipping.  Here's what I'm trying to do:  I'll ship via the Post Office, parcel post, for total for 1-4 quantity.  for 5-10 quantity, for 10-20 quantity.  If you need them faster, just contact me, and I can ship them Priority Mail for a little extra.