10-Pack Stoddard Test Tube Clamp with Finger Grips, Stainless Steel, 6 inch Lab Equipment and Supplies_Lab Equipment Twelve-ball drilled set in a

Twelve-ball drilled set in a foam-lined plastic case with two each of aluminum

Cutaway hand-powered Wankel rotary model at 8 by 7 by 3

this Van de Graaff generator delivers spark-producing high-voltage demonstrations in the physics classroom

and major vessels of the human heart

25-inch Atwood machine with two 2-inch blue-plastic pulleys on an aluminum rod

10-Pack Stoddard Test Tube Clamp with Finger Grips, Stainless Steel, 6 inch Lab Equipment and Supplies_Lab Equipment Twelve-ball drilled set in aPack of 10 Stoddard test tube clamps in stainless steel with finger grip securely holds test tubes during heating, mixing, and laboratory procedures.