Premium Wood Test Tube Rack for 6 Tubes, 22mm, with Drying Pegs Entomology & Zoology_Zoology Charts & Models Heavy-duty cork boring machine cuts

Heavy-duty cork boring machine cuts precision holes through rubber and cork stoppers for fitting laboratory glassware

supporting three-rope compound arrangements for advanced mechanical-advantage investigations

configured to make and break a circuit at the rhythm of a Morse-code transmission for telegraph-history demonstrations

and reproductive systems for amphibian anatomy teaching

satellite side impact sensor

Premium Wood Test Tube Rack for 6 Tubes, 22mm, with Drying Pegs Entomology & Zoology_Zoology Charts & Models Heavy-duty cork boring machine cutsOutfitted with six drying pegs along a second tier, this polished wood test tube rack holds six tubes up to 22 mm and supports both storage and inverted drying.