Brand new canon PGI-5 Pigment Bk ink tanks-2 for $28

Selling Canon PGI-5 BK 2-Pack Pigment Black Ink Tanks. I got it from amazon at $31 and I am asking for $28.
Fitting for the following types of printers:
Canon MP520 Canon MP600R Canon MP610
Canon MP970 Canon Pixma iP3300 Canon Pixma iP3500
Canon Pixma iP4200 Canon Pixma iP4300 Canon Pixma iP4500
Canon Pixma iP5200 Canon Pixma iP5200R Canon Pixma iP5300
Canon Pixma iP6600 Canon Pixma iX4000 Canon Pixma iX5000
Canon Pixma MP500 Canon Pixma MP510 Canon Pixma MP520
Canon Pixma MP530 Canon Pixma MP600 Canon Pixma MP600R
Canon Pixma MP610 Canon Pixma MP800 Canon Pixma MP800R
Canon Pixma MP810 Canon Pixma MP830 Canon Pixma MP950
Canon Pixma MP960 Canon Pixma MP970 Canon Pixma MX700
Canon Pixma MX850