1. The length of the bar surface is 3.5m, the diameter of the bar surface is 50*40mm, and the material of the bar surface is glass fibre reinforced plastic, and the outer wood leaf is covered. 

2. The column is 2 seamless pipes riveted together through advanced hot charging process to ensure the coaxiality of the column. 

3. There is a positioning hole every 5cm on the adjusting rod, and the adjusting rod and the column are tightly combined by the locking chuck, with a height adjustable range of 165-205cm and a width adjustable range of 45-65cm.

4. The base is welded by folding a steel plate of 6mm.

Features: It ensures the safety of the equipment and increases the elasticity of the bar surface; The overall stability of the parallel bars is ensured.