Item Type: Microscope Adapter Ring_x000D_ _x000D_ Material: Aluminium Alloy_x000D_ Product Color: Black _x000D_ Product Weight: Approx. 73g/2.6oz_x000D_ _x000D_ Mount: T Mount, T2 Mount, K Mount_x000D_ Applicable Models: For Pentax K Mount SLR Camera 1Made of high?quality aluminum alloy, it is strong and durable and with a long service life. 2The surface is painted with anti?oxidation treatment, smooth appearance and corrosion resistance. 3Suitable for Pentax K mount SLR camera, which can help to record the biological microscope picture after the transfer. 4It can be separated and used separately, and the middle transfer part is designed with M42x0.75 interface. 5Easy to install and operate. It can be used with just a few simple installation steps, which can effectively save your time.1 x TMount MicroscopeAdapterRing 1 xCamera LensAdapter