Product specification:

Model: HA105 Type: Undermount, Single Bowl Material: 304 Stainless Steel Processed: Brushed Thickness: 16 Gauge/1.5mm Size: 32''X19''X10'' (813X483X254mm)         3-1/2" (114mm) drain opening         3-1/2" (114mm) to 1-1/2" (32mm) strainer
Comes with mounting template, easy to install.

Option:strainer $12/each
Option:grid $60/set