Labeled Reagent Bottle, 500mL, Screw cap size: 33-405. Specially designed polypropylene pouring lip, impossible for a drip to form. Natural polyolefin cap liner provides a tight seal and protects the pouring surface from dust and dirt.
KidWind Wind Turbine Hub, ten-pack of 12-hole crimping hubs, made from recycled plastic, allows you to turn any DC generator into a wind turbine, Diameter: 2.25 in, Maximum number of dowels: 12, Size of shaft hub press fits onto: 2 mm