????????????????????????????????????????????????????????????????????????????????????????????????????????????(1) Meet the International Sled Federation Certification Requirements;
????????????????????????????????????????????????????????????????????????????????????????????????????????????(2) consisting of two skid blades, two blade holders, one base (lying board), and two bridges;
????????????????????????????????????????????????????????????????????????????????????????????????????????????(3) Provide matching skid blades;
????????????????????????????????????????????????????????????????????????????????????????????????????????????(4) The base (lying board) can be tailored according to the athletes. The athletes lie flat on the base, and ????????????????????????????????????????????????????????????????????????????????????????????????????????????????the rear athletes' shoulders do not exceed the rear extension. The front athletes' knee bends do not ????????????????????????????????????????????????????????????????????????????????????????????????????????????????exceed the forward extension.
