Spherometer with Brass Dial Head and 3 Stainless Steel Legs, 2.5" Subcategory_Wash Bottles Polypropylene round test tube rack

Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

letting students wire the panel directly to each load and watch how light powers different output devices

neuroanatomy

and electromagnet leads

Nineteen-piece electrostatics kit anchored by a gold-leaf electroscope

Spherometer with Brass Dial Head and 3 Stainless Steel Legs, 2.5" Subcategory_Wash Bottles Polypropylene round test tube rackRadius of curvature spherometer at 2. 5 inches with a 40 mm brass dial head, three stainless steel legs, and a 1 mm pitch micrometer scale from 0 to 10 mm for lens measurement.