When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay. SPEX Laser Optical LOT Plate Holder, Scanning Spectrometer, Input Slit # 1710 This product data sheet is originally written in English. SPEX Laser Optical LOT Plate Holder, Scanning Spectrometer, Slitter PN# 1710 / 1632 I do not know much about spectrometers or parts. But I know these are hard to find. It came from working environment and if it does not work for you I will refund. 6 SPEX parts in this lot (for the price of 1!!): - One slitter. Dial on slitter goes 1- to 200 No tags or markings of the slits (dial is stamped SPEX). - The other part is Scanning Spectrometer (pn- 1710) - Other part is SPEX Plate holder - 3 Apertures/ lenses holders (??) (one is stamped 1632) Will ship international. please ask questions. Please look at pictures. SPEX Laser Optical LOT Plate Holder, Scanning Spectrometer, Slitter PN# 1710 / 1632 I do not know much about spectrometers or parts. But I know these are hard to find. It came from working environment and if it does not work for you I will refund. 6 SPEX parts in this lot (for the price of 1!!): - One slitter. Dial on slitter goes 1- to 200 No tags or markings of the slits (dial is stamped SPEX). - The other part is Scanning Spectrometer (pn- 1710) - Other part is SPEX Plate holder - 3 Apertures/ lenses holders (??) (one is stamped 1632) Will ship international. please ask questions. Please look at pictures. Brand SPEX Model Yobin Yvon MPN 1632