1. Material: all aluminum alloy structure, copper alloy feet; All three bearings use bearing steel balls, fully enclosed structure, self-lubricating and maintenance-free, large turntable bearing main material high hardness aluminum alloy, and two small Cup bearings main material bearing steel. 2. Geometric parameters: the maximum diameter is 120mm, and there is no mechanical limit on rotation angle of gimbal, which only depends on rotation angle of motor. 3. bearing capacity: which can bear less than 20kg. Color: As Shown Material: Aluminum Alloy Package Contents: 1 x dof Only robot frame(Only robot frame without servo) Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.