-4 types of mounting:

1)20x20 M3

2)16x16 M3

3)25,5x25,5 M2 (classic toothpick board) 

4)26,5x26,5 M2 (for BetaFPV toothpick board)

-12 and 9 mm (x4) motor mounting holes

-Holes for battery strap

-"Spikes" in proctection of motors in cause of falling

-120mm wheelbase

This frame has created for total convertion of "no toothpick" drone for lighter weight with classic mounting holes, for example i converted my Eachine Tyro79 in this configuration (the canopy and some standoff are necessary to complete the structure) with better carbon fiber quality and good looking.

Recommended part (top spec) :

-BetaFPV 35A AIO toothpick board

-Brotherhobby VY 4150KV https://bit.ly/3bzvczG

-Caddx Vista HD (for DJI digital FPV)  https://bit.ly/2KwcWv9

-Tattu R-Line 4s 850mAh https://bit.ly/2S4G3tD