Outside dimensions:

#8712    Clear Tray 6"W x 6"D x 2"H        $9.50
#8712-D     Dividers for 8712                     $2.50

#8722    Clear Tray 8"W x 8"D x 4"H      $14.00
#8722-D    Dividers for 8722                      $7.50

#8732    Clear Tray 10"W x 10"D x 4"H  $18.50
#8732-D    Dividers for 8732                      $9.50

Made of heavy 4.5mm acrylic.