EDIT: TRADE PENDING ON THE LOT.
I just realized I've got a bunch of 4-string roundwound sets and currently only use 1 bass like that. I've got a backup set, a few new sets (which for me will be more than a decade's supply

). And the rest I want to sell to raise funds for the strings I really need.
In some cases the packaging might be scuffed, but all the strings are new, never-installed.
D'Addario XL / Nickel Round Wound / Long Scale / Heavy Gauge / 55-75-90-110
$10
Ernie Ball Super Slinky Roundwound 45-65-80-100
$10
Ernie Ball Super Slinky Roundwound 45-65-80-100 (same as above but it's a 5-string set minus the low B)
$10
Ernie Ball Super Slinky Roundwound 65-80-100 w/ D'Addario XL 45 for the G
$8
Priority mail
shipping is $4 per order (will combine for multiple sets). Or I'll do the whole lot for $35 shipped.
Trades considered for anything of comparable value, particularly flatwound strings or a good hefty strap.
Cheers