The cage with OEM no. N090210 is a genuine DeWalt/ Black & Decker part for the DeWalt DW089KD DW089CG multi line laser.
Has the glass broken or scratched on your mulit line laser then you will need to replace the front cage as the glass can not be bought with out it this product comes complete with the screws to affix it to the laser,
This will fit all the models listed below