Note:- Due to manufacturing processes, the thickness of our products may have a standard manufacturing tolerance of ±0.2mm. The size of the hole may have a standard manufacturing tolerance of ±0.1mm.- Comes unassembled. Need build by buyers. - The mounting holes of the new (DJI O4 PRO version) aluminum parts are consistent with those of the old APEXEVO series (DJI O3 model). If you want to equip the old APEXEVO with DJI O4 PRO, you can replace the new aluminum parts (DJI O4 PRO version) without replacing the carbon fiber plate to adapt to the DJI O4 PRO lens. At the same time, the new aluminum parts are compatible with 19mm-20mm lenses such as DJI O3 Air Unit/analog. Specification:Brand: TEOSAWModel: APEX D5 / D5 Max / D7 / D7 MaxItem Name: 5 Inch / 7 Inch Frame KitModelAPEX EVO DC5(Support O4 PRO)APEX EVO DC5 MAX(Support O4 PRO)APEX EVO DC7(Support O4 PRO)APEX EVO DC7 MAX (Support O4 PRO)Wheelbase:245mm340mmDimensions:Approx.187mm(L)x230mm(W)x35mm(H) (excluding printed parts)Approx.222mm(L)x309mm(W)x35mm(H) (excluding printed parts)Weight:Approx.151gApprox.174gApprox.179gApprox.203gStructure:DC StructureThickness:Arm 5.5mm, upper plate 2.0mm, bottom plate 2.5mm, splint 2.5mmMaterial of the Nose:7075 Magnsium Aluminum Alloy CNCCamera Side Panel:3D Printed Parts TPUMaterial of Aluminum Column:7075 Hexagonal Aluminum ColumnApplicable Propeller Size:5-5.1 inch7 inchFlight Control Hole Spacing:20*20mm (M3), 30.5*30.5mm (M3)Tail Image Transmission Installation Hole Spacing:20*20mm