Clear Disc Detainer Practice Padlock w/ Lock Pick Training Aid - GOSO Lock Picks
New 2pcs Disc Detainer Locksmith Tools Lock Picks Set Padlock Tool and with Transparent Practice Lock | Wish
Amazon basics disc detainer picked with sparrows. Had to file down the tensioning nose to make the prongs longer to get past the anti-drill plate and reach the first disc. : r/lockpicking