Blue Epoxy Wire Test Tube Rack, 36-Hole (6 x 6), for 10-13mm Tubes Material_Polypropylene Primary-level electricity kit for six

Primary-level electricity kit for six students with connecting leads

and flight adaptations for bird biology teaching

the standard frequency for hearing-test calibration

Box-joint straight artery forceps with serrated jaws clamp vessels and tissue during specimen dissection

sized for branched circuits where additional plugs share a single terminal

Blue Epoxy Wire Test Tube Rack, 36-Hole (6 x 6), for 10-13mm Tubes Material_Polypropylene Primary-level electricity kit for sixSquare 6 by 6 layout in blue epoxy coated steel wire holds 36 small test tubes from 10 to 13 mm, pairing a compact footprint with chemical resistant rack construction.