Output Power No
Material and Color metal
Lens plastic (PMMA)
Dimensions Ø 8 x 13 mm 
Details: 

Diode housing with mini diameter for TO-18 laser diode!
PMMA lens! The diameter of the lens is 7mm.

And the diodes are press-fit.

With spring! It can help the diode contact the housing more tightly

Package:

2pcs X Diode housing with Lens and spring .