Standard Skywatcher 5.1kg counterweight that fits (I think this is all of them):
- EQ6
- EQ6 Pro
- NEQ6 Pro
- HEQ5
- HEQ5 Pro
It's about 18 months old and in good condition - no corrosion - it has very minor wear marks at the outer edges through normal use.
I have the original box, so can ship Australia-wide at buyer's expense. To estimate shipping cost, the box dimensions are: 20 x 20 x 10cm.
Price: $45 plus shipping at buyer's expense.