5-Piece Giant Wooden Clothespins for Crafting, 10.5 inch Racks & Stands_Funnel Stands Rotary-knob resistance substitution board offering

Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections

Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input

and prism table for measuring wavelengths and the refractive indices of solids and liquids

Includes kidneys

5-Piece Giant Wooden Clothespins for Crafting, 10.5 inch Racks & Stands_Funnel Stands Rotary-knob resistance substitution board offeringTen and a half inch giant wooden clothespins ship as a 5 piece set for larger decorative crafting, hanging displays, and classroom projects.