Superior Wooden Test Tube Support, 12-Place Entomology & Zoology_Entomology Supplies the medium-strength option for classroom

the medium-strength option for classroom investigations into magnetic poles and field-line geometry

Designed for Bunsen burner support

Wall-mounted Mason's hygrometer with two identical dual-scale thermometers — one dry and one kept wet via a water reservoir — calculating relative humidity from their paired reading difference

this three-finger lab clamp pairs vinyl-coated prongs with a swivel bosshead for flexible rod mounting

Superior Wooden Test Tube Support, 12-Place Entomology & Zoology_Entomology Supplies the medium-strength option for classroomTwelve place hardwood test tube rack combining ten 19 mm holes and two 25 mm holes with twelve draining pins for mixed size storage and inverted drying on the bench.