The ADCO Super Thumb ST5 .380 is a double stack loading tool. Fits most popular double stack .380s.Made from Black polymer. If you have one of the high capacity .380's similar to what Bersa, Beretta and Browning have put out then this is the one for you. The ST1 used to work well enough, but with the extra length in those longer rounds, there was a considerable amount of wobble and if you wanted a better fit you simply needed a shorter mag well. So after years of popular demand we came up with the ST5 to fill that need and make the loading procedure more precise for your shooting needs.