Projection Screen 36 x 48" LabLearner 5 inch base with a

5 inch base with a two-tension-setting spring gun and visible internal components

Insulated copper solenoid 155mm long with a 27mm internal diameter

tapered spout

the polished 90-45-45-degree faces redirecting light at right angles for total internal reflection demos

easily inclinable surface for dynamic-cart and momentum experiments in mechanics units

Projection Screen 36 x 48" LabLearner 5 inch base with aWall automatic roll back spring action screens (box type casing), with hooks for mounting on walls and an AUTOMATIC roller mechanism for winding. Wall automatic roll back spring action screens (box type casing), with hooks for mounting on walls and an AUTOMATIC roller mechanism for winding. Size : 36 x 48"