100-1000Ω Single Dial Resistance Box Pack Size_12 and gamete formation for reproductive

and gamete formation for reproductive biology teaching

Molded black plastic replacement knob sized for the goggle sanitizer cabinet timer switch

Compact 150mm black 2mm-stackable lead with nickel-plated split-hollow pins

Solid glass friction rod that develops a positive electrostatic charge when rubbed with silk or wool

Reel of 20 SWG bare constantan wire at 125g and 0

100-1000Ω Single Dial Resistance Box Pack Size_12 and gamete formation for reproductiveMid range single decade resistance box stepping from 100 ohms to 1000 ohms in 100 ohm increments, the standard reference decade for precision Wheatstone bridge and instrument calibration work.