6-Piece Acrylic Lens Set, 38mm (Convex, Concave, Plano, Meniscus) Gifts_Kitchen Half-wood-half-metal 200 by 30mm cylinder

Half-wood-half-metal 200 by 30mm cylinder demonstrating thermal-conductivity differences through a wrapped paper that scorches over wood but stays uncharred over metal in flame

Adjustable locking hook positions items 110 mm from the support rod on this suspension clamp

Demonstrates electromagnetic switching on a base with 4mm plug connections

Conversion chart for SWG/AWG/Inches:

this set covers the mid-range bench volumes with raised graduations and tapered pouring spouts

6-Piece Acrylic Lens Set, 38mm (Convex, Concave, Plano, Meniscus) Gifts_Kitchen Half-wood-half-metal 200 by 30mm cylinderCompact 38mm acrylic six piece lens set covering convex, concave, plano convex, converging and diverging meniscus, and plano concave geometries for safer student station optics.