Square Boss Head Clamp, Die-Cast Alloy, up to 16mm Rods Geology_Geology Charts & Models Tool-free 5-minute assembly to a

Tool-free 5-minute assembly to a 21-inch height puts ripple-tank wave behavior - reflection

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

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

3 glass Griffin-form beaker shot glasses hold 3

and a candle holder

Square Boss Head Clamp, Die-Cast Alloy, up to 16mm Rods Geology_Geology Charts & Models Tool-free 5-minute assembly to aSquare die cast alloy boss head with metal thumbscrews, gripping square or round rods up to 16 mm and accommodating flat articles like rulers and drawing boards.