With the release of the HQ T5x3x2 lightweight t-mount props and the need of a true lightweight 5" frame in the industry, Racer X FPV continues to innovate and has designed the ET5 "Extraterrestrial TWIG 5". The ET5 is a mutated TWIG frame that can accommodate 5" props. The frame is premium 3.5mm thick high grade T700 carbon cut along the weave and chamfered on both sides interior and exterior edges at .8mm. The frame measures approximately 200mm from motor post to motor post. Motor mounting is for 4-hole 9x9 or 12x12 motor mounts. You do not have to use t-mount motors as there are also a lot of 5mm shaft motors from 15xx to 16xx that are great choices as well as lots of 5mm 5" shaft props to choose from on the market. We highly recommend keeping your motors under 18 grams since this is a lightweight frame. With our strong signature cross bar design, we were able to design a super lightweight 5" frame at only 3.5mm, yet super durable and stiff to allow it to track like all our amazing frames do. The ET5 can accommodate a standard 20x20 stack or a whoop toothpick aio. For More Info INCLUDED IN KIT(1) ET5 T700 Chamfered Frame(1) Battery Pad,(1) Racer X FPX Battery Strap(1) TPU Canopy, (4) TPU Arm Guards(4) TPU Motor Wire Clips(4) M3x6MM Nylon Standoffs(4) M3x8MM Nylon Standoffs(8) M3x6mm Button Head Screws(4) M2X16mm Button Head  Screws(8) M2 Black Nylon Nuts, HQ T5X3X2 Props, Packaging & Label. if you chose "Yes" for the Striping Option please include the color combo you would like into the Text Field.