Attach the Shelton's Fish Descender (SFD) to any line with a weight attached below it and drop a fish back down to desired depths. Pull hard on the line and the fish will come off the SFD. Using the SFD over a deflation needle most likely improves the chances of fish survival.
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DHEP) and lead, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov