Do you just need to order Mazuri?  Get 11 pounds in a medium flat rate box (USPS Priority shipping) for $35.50
  Price includes :
$19.25 - 11 pounds Mazuri Chin Chow
$16.25 - USPS Flat Rate Shipping - Medium Box - and packaging / handling
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  $35.50 Total
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  Mazuri Chinchilla Chow is a complete ration in pellet form designed especially for chinchillas in all phases of their life cycle.  Mazuri is a palatable, sweet-smelling alfalfa-based pellet designed to meet the nutritional needs of chinchillas.