Dangerfield 'Ionic Praxis' 21pc Dual-Gauge Professional Lock Pick SetFree UK delivery over 30 Royal Mail options 30 day easy returns European delivery options Dual gauge Praxis set Praxis range and dual gauge feel with a black ion coating The Ionic Praxis takes the familiar 21 piece Dangerfield Praxis route and adds a matte black ion vapour deposition coating. You get the broad hook, rake and tension selection of Praxis with a smoother, more durable feeling finish. 21pieces Dualgauge Ioncoating Dangerfieldset 5 5