Rubber Stopper Assortment Pack 1 lb, #1 to #6

You will always have the right size rubber stopper on hand with this 2 lb package of assorted solid, 1-hole and 2-hole stoppers ranging in size from #00 to #8. You get 60 stoppers total.

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These #3 rubber stoppers are 18-24 mm diameter with one 4 mm diameter hole.

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Get high-quality chemistry hardware & lab supplies! This 12-piece chemistry starter kit includes a support ring, a test tube rack, beaker tongs, a pinchcock clamp, a clay pipe-stem triangle, a burner tripod stand & more!

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These No. 2 rubber stoppers are 16-20 mm diameter with two 3 mm diameter holes.

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This set of six cork borers allows you to make uniform holes in rubber stoppers and corks to meet a variety of laboratory needs.

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You can quickly provide a continuous water supply to and from a condenser with this Condenser Accessory Set.

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Get the glass labware you need for even complex chemistry projects (like distillations and titrations) with this chemistry glassware set. This deluxe glassware kit includes 119 pieces of labware for all your chemistry needs!

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These #5 rubber stoppers are 23-27 mm diameter.

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Want a real chemistry set for your kids? Look no further! This beginners chemistry set comes with all the basic lab equipment needed for chemistry experiments & projects. Get high-quality beakers, test tubes & much more!

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These No. 2 rubber stoppers are 16-20 mm diameter with one 5 mm diameter hole.

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