26-Piece Borosilicate Glass Gas Preparation Kit Graduations_Ungraduated the cylindrical concave curvature spreading

the cylindrical concave curvature spreading light along a single axis for line-focus and divergence demos

Rod-mounted metal bar and U-shaped gauge demonstrator with an insulated handle

the wider reflective surface accommodating wider beams and full-figure reflection demonstrations

Transmitter and receiver pair on PP3 batteries with 5m and 10m polymer fiber coils

26-Piece Borosilicate Glass Gas Preparation Kit Graduations_Ungraduated the cylindrical concave curvature spreadingTwenty six piece borosilicate glass gas preparation kit assembling flasks, delivery tubes, and fittings into a range of gas generation setups in introductory chemistry.