Description No cartridge jiggle. Twist knob. Strong metal points hold cartridges securely in the loader until you release them into the revolver with a turn of the speedloader knob. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.