Cork Borers, Set of 6, 5 mm - 11 mm

This core borer is used to make uniform, large 15 mm (9/16") diameter holes in rubber stoppers or corks.

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.

These aluminum weighing boats or weighing dishes have multiple lab uses.

This piece of dialysis tubing can be opened up to form a sheet of semi-permeable membrane that is 3-1/2" wide by 12" long.

Pack of two test tubes.

This 1" diameter semi-permeable dialysis tubing is ideal for osmosis or diffusion experiments.

Use this universal clamp to set up complex chemistry distillations or other laboratory equipment.

A 2' section of flexible clear vinyl tubing.

This Lugol's iodine solution stains carbohydrates in plant & animal specimens brown or blue-black & stains glycogen red. An aqueous solution of 1.8% iodine & 3.0% potassium iodide. Lab grade; not for food or medical purposes.

A Buchner funnel is used for vacuum filtration.