22 Magazine, Clip Loader.  ....The nearly famous "Shaker Loader" Easily load your Ruger Mark 2,Mark 3, Mark 4 and 22/45 pistol magazines in seconds and saving your thumbs and fingers from abuse. The Speed Beez Magazine loader holds 50 plus rounds of .22 ammo and speed loads multiple .22 auto pistol magazines with out any adjustment to the loader. Works with FACTORY Magazines ONLY fits Ruger Mark II, III, IV .22/45. Simply pour loose rounds into the hopper, shake loader to align cartridges, press the empty magazine into loader pull out slightly to release the rounds into the open magazine. Made in the USA from virtually indestructible polycarbonate. There is learning curve different magazine and ammo combinations will all load at different rates don't expect all 10 to fall in on the first try take your time follow the instructions, it's not hard. Works best with Winchester and Federal bulk. Does not work with sub sonic CCI or any Aguila.