6DOF Aluminium Mechanical Robotic Arm Clamp Claw Mount Robot Kit 5-15 days with tracking. Dimension: 21*17.4cm Weight: approx 500g Material: alluminmum alloy Function: clamping objects Packing List: Alloy mechanical claw x 1 Multi-functional bracket x 5 Long U shape bracket x 3 L shape bracket x 1 U beam bracket x 2 Cup bearing x 3 1 Set Screw nut (About 100Pcs M3*8 Screw ; 100Pcs M3 Nut ; 10Pcs M3*6 Screw ; 5Pcs M3*10 Screw)