Class A Burette with PTFE Key Stopcock, 100mL, Blue Graduations, Borosilicate Glass Geology_Geology Specimen Collections rubber stopper

rubber stopper

sized to keep electromagnetism demonstrations running when the original coils wear out

Set of eight three-dimensional cross-section landform models that arrange into a 37-inch continuous hand-painted landscape

this cork press compresses rubber and cork materials to improve pliability and seal quality in glassware setups

and mechanical-advantage experiments (stand base and support clamp sold separately)

Class A Burette with PTFE Key Stopcock, 100mL, Blue Graduations, Borosilicate Glass Geology_Geology Specimen Collections rubber stopperClass A burette in heavy duty borosilicate 3. 3 glass holds 100mL with blue graduations and PTFE key stopcock for large volume titration.