1. Ring frame is steel pipe welding, and surface of contact between parts is segregated by muffling spacer; low noise, assembled by standard fasteners, convenient to set up;

2. Multi-layered eucalyptus plank for table board, treated at high temperature, non-moisture by spraying and coating, mothproof and non-deformable;

3. Canvas sheet of space leather is non-slip through sewing process; carpet is made of efficient energy absorbing foam and duplex gel foam through folding process;

4. Synthetic leather of angular mat has an inner container of spongy foam;

5. Synthetic leather of fencing rope has a cushioning layer of foam cotton and an inner core of steel wire, well-knit and serviceable, non-deformable, looseness adjustable.

6. Encircling net frame is special profile welding , and grids adopt garland net of TPU packaging plastic, corrosion resistant, not prone to cracking, and preventive effectively against bumping and scratch.