Kolbel Self Retaining Retractor With 6 Blades Shoulder Surgery Instruments Set. 1 Retractor Kolbel Self Retaining Retractor. 2 Blades 36mm x 32mm. 2 Blades 36mm x 57mm. 2 Blades 36mm x 70mm. However, we will ask you to return our product(s) is in its original packaging and in its new condition. We will work with you to resolve any issues. It is the quickest way to reach us – we respond typically within 24 hours. We request that the item be unused and in original packaging. Products can be manufactured to custom specifications with customized branding. Thank you for visiting our store We hope You will come back again. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies.