MEASUREMENT DEVICES WITH INTEGRAL ANGLE FINDER, SPIRIT LEVELS, AND CASTOR DEVICE PAIR FOR USE WITH LADDERS

Measurement devices () for measuring and marking purposes and including an integral angle finder () for enabling two modes of use: placing either major body surface () on a flat surface or setting a base () on an inclined surface for indicating its inclination. Spirit levels (A) for setting a spaced apart pair of adjacent upright studs of more than one standard stud width at a standard stud separation between the midpoints of spaced apart pair or upright studs. Caster device pair () for use with a ladder () having a stabilizer () for enabling wheeling the ladder () while being held generally horizontal by a user for assisting moving the ladder () without having to lift its entire weight.