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"The Mystery of Lyle and Louise"

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TeacherGeek Barbed Tee - ¹/₈"

TeacherGeek Barbed Tee - ¹/₈"

Barbed Tees enhance your ability to design and build hydraulic or pneumatic systems.

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TeacherGeek Rubber Band Racer

TeacherGeek Rubber Band Racer

One Racer, Endless Design Possibilities

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E.I. Double Concave Glass Lenses

E.I. Double Concave Glass Lenses

Individual spherical glass lenses.

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E.I. Double Convex Glass Lenses

E.I. Double Convex Glass Lenses

Individual spherical glass lenses.

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