Economy Ceramic Disc Magnet, 25 x 5mm Electricity & Magnetism_Magnetism 3mm inner diameter for blood

3mm inner diameter for blood sample collection and laboratory analysis procedures

Adjustable iris from closed to a 30mm maximum aperture inside a 3-inch black metal body

this 3-inch Alnico pair fills the mid-length slot between the 1

Lamp-house assembly dimensioned as the matched replacement unit for optical bench and light-source apparatus when the original housing reaches end of life

5 inch dynamics carts in solid wood and aluminum with nylon ball-bearing wheels

Economy Ceramic Disc Magnet, 25 x 5mm Electricity & Magnetism_Magnetism 3mm inner diameter for bloodEconomy 25 by 5mm ceramic disc magnet, an individually stocked spare from the disc series for physics labs, craft use, and ad hoc experimental setups.