Plastic Rattleback

Spin the Rattleback clockwise and watch it stop, rattle up and down and then spin in the other direction! A science curiosity whose ancient and mysterious properties capture the attention of all ages.  NC-14685

Polyethylene Test Tube Rack, 12 place

White polyethylene in-line rack has twelve 26mm holes. Sides are open for clear viewing. For test tubes 75mm or longer and up to and including 25mm in diameter. NC-9503

Polystyrene Snap Cap Vial, 50 dram / 184mL

This snap cap vial is great for collecting and displaying almost any type of sample. Tight fitting lid holds liquid or dry material. Not for solvents, corrosives or high temperature contents NC-4905-PK

Premium Bone Ash Straight Wall Cupel, 2.0 inch

This small shallow porous Cupel is manufactured from bone ash, a composite material and Magnesite (MgO). Used in assaying to absorb separate precious metals from lead. Lead absorption: 85g. Ships inside USA only. NC-14700

Rubber Stopper, Size #000

Fits 12X75 Test Tubes. All of our black rubber stoppers are laboratory grade. Available as solid only. NC-0969

Scoopula, Stainless Steel, 6-1/2 inch

Ideal for handling small amounts of material in the lab and field. Use a scoopula to easily remove loose chemicals from small bottles with minimal spillage. Also good for breaking up clumped material and as a stirrer. NC-0829

Septum Stopper, White Rubber, for 24/40 Joints

"Sleeve" style septum with hollow plug for use with 24/40 outer joint. Top is flanged with an extension that folds down over the neck of a vessel for a tight seal. The diaphragm can be punctured readily with a syringe needle. Puncture seals automatically after the needle is withdrawn. NC-14469

SIBATA Class A Serological Pipette, 1mL

Sibata^® serological pipets meet ASTM E 1044 Style 1 Class A specifications for tolerance limitations and are graduated to the tip. They are also calibrated to deliver the entire capacity when liquid is blown-out. NC-0713

Silicone Stopper, Size #2

Fits 20X150 Test Tubes. Silicone stoppers are particularly useful due to their inert and nonreactive nature. Heat to 450°. Chemical resistant. NC-14557

Straight Tip Glass Droppers, 4 inches, pk/4

Four inch long straight tip traditional eye or medicine glass droppers. Sold as a pack of four. NC-0363-PK

Student PP Polypropylene Graduated Cylinder, 50mL

This high quality, polypropylene 50ml Graduated Cylinder has raised numeric graduations for easy reading. This cylinder has excellent chemical resistance and is autoclavable. NC-7833

Super Scarab Color Shifting Thinking Putty

• Color: Purple with hints of blue and teal running throughout
• Features: Memory Effect, Tearable, Bounceable, Soft Texture
• Ages: 3+
• SKU: NC-14304