Flexible Magnetic Base ~ Permanent magnet with on/off switch control. ~ Cam lever operates the cable and locks it rigid at any desired position. ~ Adjustable cable tension. ~ Stem flexes a full 360°. ~ Can be used with all AGD dial indicators. ~ Overall length is 13″. ~ Power pull is 130 lbs. ~ Base dimension is 2″ wide x 2-1/2″ depth. ~ Clamp hole is 12.5mm. Permanent magnet with on/off switch control. Adjustable cable tension. Stem flexes a full 360°. Overall length is 13″. Power pull is 130 lbs.