The file 'Meteor 75 Pro Battery Holder For 450 CNHL 3D Printer Model' is (stl) file type, size is 10.9KB.
Batteryholder for CNHL 450mah for the meteor75 pro (walksnail in this case).
The holder is toilet tank, 90 degrees rotated. It goes in between the battery holder and you rotate it 90 degrees.