Boxing Gloves used in pro Muay Thai
Boxing gloves used in Muaythai weigh from 6 to 10 ounces depending on the weight class of the bout

Legal Strikes...
Hands: Can punch all parts of the body, arms, legs and head. No punching to the groin or behind the head.
Legs: Can kick all parts of the body arm, legs and head. No kicking to the groin of behind the head.
Elbows: Can strike all parts of the body arms,legs and head. No 180 degree elbow strikes can be used.
Knees: Can strike all parts of the body arms, legs and head. Clinching, pulling, pushing, turning and cutting angle of opponent to set up knee strikes or to defend knee strikes are allowed. If either fighter loses balance and falls during the execution of these techniques there is no foul and the fallen fighter is not counted. No knee strikes to the groin.

Scoring...
              Scoring is based on a 10 point must system, with a round winner receiving the 10 points and the loser 9 points. If there is a knockdown or a standing eight count then the loser has another point deducted giving an 8 point for that round. If the bout is fought to completion the scores for each combatant are totaled and the one with the most points is the winner. If the scores are equal it to be declared as a draw.
               Muay Thai fighters are judged  on : Correct style combined with hard accurate strikes, aggressiveness, dominating of  the Muay Thai skills, actively dominating an opponent and the uses of a traditional style of defense counter attacks.

Fouls..
         The following are fouls in Muay Thai and penalized by the deduction of one point from the fighter's score. A fighter who has been hit in the groin may request a five-minute break before continuing the match.
No submission techniques(arm bar, choking etc.)
No throwing, judo sweeping or takedown
No head butting
No biting
No stepping on the feet of toes
No holding and hitting
No punching, kicking, elbow strikes or knee strikes are allowed until the referee resumes action.
No hitting in the groin. 

Muay Thai Weight Divisions..
A fighter must weigh at least 100 pounds to be recognized as a  18 of the Muay Thai weight classes.

Category                                                        Weight (up to)
Super Heavyweight                                            209 lbs+
 Heavyweight                                                    190 lbs+
Cruiserweight                                                   190 lbs
Light Heavyweight                                             175 lbs
Super Middleweight                                           168 lbs.
Middleweight                                                    160 lbs
Junior Middleweight                                           154 lbs
Welterweight                                                    147  lbs
Junior Welterweight                                           140 lbs
Lightweight                                                       135 lbs
Junior Lightweight                                              130 lbs
Featherweight                                                    126 lbs
Junior Featherweight                                           122 lbs
Bantamweight                                                    118 lbs
Junior Bantamweight                                           115 lbs
Flyweight                                                            112 lbs
Junior Flyweight                                                  108 lbs
Mini Flyweight                                                     105 lbs.