Round Convex Glass Mirror, 50mm Diameter, 100mm Focal Length Light & Optics_Color Brass-knife single-pole single-throw switch on

Brass-knife single-pole single-throw switch on a durable plastic base

this heavy-duty bosshead holds a support rod and a perpendicular rod in a rigid screw-adjustable grip

including Faraday's pail

the smaller-tube counterpart to the 300x44mm standard rheostats with the same constantan-winding construction

shipped with 100 discs and a tape roll in a clamping-plate-ready case

Round Convex Glass Mirror, 50mm Diameter, 100mm Focal Length Light & Optics_Color Brass-knife single-pole single-throw switch onConvex glass mirror at 50mm diameter and 100mm focal length, the diverging curvature widening the apparent field of view through virtual upright reduced images.