Is there a way to order these labels reverse wound? I have bought these in the past but the doc tab is on the wrong side for my application.

Many software programs allow you to flip / reverse the direction of the printing. You may want to check to see if your software allows you to flip the printing direction. We can offer the product with the doc tab on the other side, but it would be a special order or custom item so the pricing would be higher. If you provide the details of your requirements (quantity required) we can get you pricing. Feel free to contact us at: https://www.onlinelabels.com/support

Can this label be printed in light yellow or green?

If you're using a direct thermal printer, you would not have the option for colored printing. If you have access to a thermal transfer printer, you may be able to purchase colored thermal ribbons. At this time we do not offer colored thermal ribbons, only ribbons in black, however I can forward this to our Product Development Team for future consideration. If you're looking for colored materials, we currently offer colors on sheeted label stock, not thermal rolls. Below is a link to all of our available material options. https://www.onlinelabels.com/materials

I'm not looking for a colored ribbon but a colored background in a light yellow or green.

We only carry white thermal roll materials at this time but we do offer colored materials in 8.5" x 11" and 8.5" x 14" sheets. You can view the link below to see our available colors. https://www.onlinelabels.com/browse_material.aspx I will go ahead and forward your request for the colored thermal material to our Product Development Team to review for future consideration.

Do you offer this label where there is a perforation between the small and larger label?

We do not currently have a configuration that includes a perforation between the 4" x 6" and 4" x 2", however we can create a custom configuration for you. You're welcome to reach out to our Customer Support Team at 888-575-2235, or by submitting a support ticket at the link below. One of our representatives will be happy to assist you further. https://secure.onlinelabels.com/Support/SupportRequest.aspx