This is a replacement for the locking mechanism inside the brush attachment of Dreame Cordless Vacuum Cleaners accessories. It has to be printed in a vertical position for the heighest load-bearing capacity. Use the strongest material in your arsenal. For me this is PETG from Extrudr. Due to the suboptimal positioning of the clip, I added a small support which has to be cut in post processing.

Compatibility

Given the extensive range of sub-brands and model names under Xiaomi, it's challenging to exhaustively list all the models compatible with this unit, as many are nearly identical. However, it's likely to fit most models presently available. I can personally verify its compatibility with the T20. Based on the similarity in design, it should also suit the T10, V9, V10, and V11 models. If you can confirm it fits with any other models, please do share your findings.