X-12-lula is sliding loader
T12-lula is Spring-Loaded loader
Easy and quick
Eliminates thumb pain
Prolongs magazine life
For Walther P22/G22, Ruger SR22, S&W M&P 22, Colt 1911 22, Walther PPK/S 22 (only T12-LULA)
Eliminates thumb pain and injury
Up to 1 round per sec loading
Ambidextrous