Impföse , L 210 mm Ø inside 4 mm, outside 6.4 mm stainless steel Wironite (austenitic chromium-nickel steel with 18 % chromium and 10-12 % nickel), stainless, antimagnetic, acid-resistant. Eye Ø inside 4 mm, outside 6.4 mm. Length 210 mm. Autoclavable.