Copperhead-NG Alignment pins are made of stainless steel to exacting standards. The King Cobra pin is made to fit the following models: Alignment pin for Colt King Cobra models made from 2019-present and Colt Cobra Models made from 2017-present. The I-Frame pin for the I-frame, MM-frame, E-frame is made to fit the new Anaconda 2021-present (MM-frame) and all Python models (I-frame) as well the Official Police (E-frame) and other models with these frame size designations. The grip alignment pin is necessary for all 2-piece grips that have a screw through the side. The alignment pin keeps the grips from rocking back and forth and holds the grips in the intended position to the firearm. Solid grips such as wood, acrylic, G10, etc. are made to fit the largest overall size of grips frame. Since final finishing at the factories are done by hand there exists slight differences in the grip frame from year to year production. The grip alignment pin is required to keep the grip in place and reduce breakage of the grips due to movement. Grip alignment pins are not required for 1-piece grips that screw up from the bottom. Pictures shown indicate placement for the King Cobra/Cobra, The pins look identical in photos however they sizes are different. Please choose the proper pin for your specific model. Purchase includes 1 pin in your choice of model chosen. You will not receive 2 pins, picture represents two different models available.