Class B Schellbach Borosilicate Glass Burette, White Graduations Capacity:50mL Stove-enameled metal-cased laboratory stop clock

Stove-enameled metal-cased laboratory stop clock with minute and second sweep hands

Fitted with handle to hang it on wall or blackboard

Three-quarter-inch replacement steel ball for the 2D-collision

providing a hands-free reflective surface for laser and ray-trace experiments

Two-part split heart model on an integrated base separates into right and left hemispheres

Class B Schellbach Borosilicate Glass Burette, White Graduations Capacity:50mL Stove-enameled metal-cased laboratory stop clockSuited for titrations with dark or colored titrants, the white printed graduations and Schellbach stripe preserve clean meniscus reading in teaching bench coursework.