Replacement Belt for AC/DC Dynamo, 6" ID Subcategory_Reagent Bottles Wooden-framed abacus with five steel

Wooden-framed abacus with five steel wires and 20 beads per wire on a 13

T-shaped screw-thread connector in borosilicate glass features thread size 13 for connecting multiple components in chemistry apparatus assembly

Conical filtering flask in borosilicate 3

Economy seven-piece set equips basic dissection coursework with stainless steel essentials in a leather storage case for large-enrollment teaching labs

Replacement Belt for AC/DC Dynamo, 6" ID Subcategory_Reagent Bottles Wooden-framed abacus with five steelSix inch ID replacement rubber drive belt for the AC DC dynamo, kept on hand so electromagnetic induction demonstrations stay running once the original belt stretches or wears out.