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Glass Cylindrical Lenses Bi-Convex Power 14D (Focal Length ~72Mm)
Biconvex lenses for precise light focusing.
Glass Cylindrical Lenses Bi-Concave Power 14D (Focal Length ~72Mm)
Precision lenses for straight line light focus.
Glass Cylindrical Lenses Plano-Convex Power 14D (Focal Length ~72Mm)
Precision cylindrical lens for precise light focusing.
Glass Cylindrical Lenses Plano-Concave Power 14D (Focal Length ~72Mm)
Glass lenses to focus light in straight lines.
Electric Generator, Hand Cranked With Clear Shell, Educational
Clear shell generator for educational demonstrations, hand-cranked.
Uv Sensitive Beads (Assorted Colors, 150 Beads)
Color-changing beads detect UV light and test UV products.
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