4Pack Share Goo CNC Alloy 25mm Tube Boom Mount Motor Clamp for DIY RC Quadcopter Hexacopter

For 25mm diameter tube Color:Black Material: Aluminum Dimension: approx. 37 x 31 x 5mm(L*W*T) Hole spacing: 31mm Weight: 7.7g Installed advice: 3-Axis Aircraft:need 12 pcs Quadcopter :need 16 pcs Hexacopter :need 24 pcs Package Including: 4x 25mm Aluminium Tube Clamp 2x M3 bolt with nut