The industry standard for roll labels incorporates 1/8" rounded corners for easy removal from the liner. However, at 4OVER4.COM, we offer square and rounded corners to choose from on several of our roll label sizes. If both options are available, you will see them appear in the drop-down window when ordering. If there is a label size you need where straight corners are not an available option, please contact our Support Team to see if we can assist. Contact Support Team at Support@4over4.com or you can use the Custom Project page to submit your request https://www.4over4.com/custom-project