10-Pack Borosilicate Glass Tubing, 20 inch, 0.28 inch OD and 0.19 inch ID Racks & Stands_Microtube Racks Pairs a 20° apex with

Pairs a 20° apex with two 80° base angles on a glass wedge prism

this 135-piece biochemistry student set ships in a 4-compartment case for organized building between lessons

across 16 removable parts in an 18-inch female half-size model

the Alnico composition resisting demagnetization for repeatable field-mapping experiments

Stand-mounted Ingen-Hausz apparatus comparing thermal conductivity of different metal rods through wax coatings that melt at different rates along each rod from the heated end

10-Pack Borosilicate Glass Tubing, 20 inch, 0.28 inch OD and 0.19 inch ID Racks & Stands_Microtube Racks Pairs a 20° apex withPack of 10 borosilicate glass tubing pieces measures 20 inches with 0. 28 inch outer diameter for glassblowing and apparatus construction.