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training mitts and gloves are not new. Their basic shape and design replicate the gloves used by the early Players of the game. When padded gloves made their appearance after world war II adidas superstar nere e oro , utilizing two hands was the only way to gain ball control. These padded shells did not offer much if any pocket by witch to trap the ball using the glove only. As the padding in these gloves tended to shift during play, the pocket formed through use would also shift. Commercially available training gloves include the Kelley Athletics Training mitt, Akadema APG97 Infielders Training Glove, a.k.a. the Pancake; Mizuno GXT1 Training Glove and Valle Eagle Trainer Pancake Training Glove. These gloves share similar geometry and shape. Using a round training mitt has two obvious advantages. First, off axis catches can still be trapped over any portion of the glove. The rigid perimeter creates a stable base for glove operation as a whole. Second, as Coaches drive grounders to the Player with a baseball bat from 40 feet or more, a properly placed glove will give the visual indicator or a complete circle. This circle is important as it confirms to the Coach that the mitt is perpendicular to the ground. Oblong shapes are tell tale signs that the Player does not have their hand in the proper position. This type of instant feed back allows Coaches greater efficiency in monitoring player position throughout the drill. Imagine throwing a baseball at a large flat board. If perpendicular to the play, any ball striking the board will simply bounce back towards its origin. This is a great advantage for Players as the ball is in front of their line of site and between them and the play. Now adidas superstar nere e dorate , rotate the board 30 degrees behind perpendicular. Most players not using two hands have their glove in this position as they are reaching out in advance of the ball. With our board, any ball striking will continue its forward progress. The baseball will bounce up and behind the player. If lucky, the ball will not go too far and the made scramble for control will end in with the base runner only advancing by one. Unlucky Players take the bounce in the face or chest where serious injury can occur. Several versions of this type of baseball training device have been granted Patents in the United States. From simple rigid materials 4,208,051 held by Thomas S. Robertson 1980 to the Triangle pad, 4,802,669 held by Peter C. Birmingham adidas superstar bianche e rosa , 1989 It is interesting to note that under United States Patent 4121824, in 1977 Robert Hirschfield developed what on the outside appears a typical small glove, while the inside is reinforced to impair the ability of the glove to close. The invention concerns a partially inflexible device which may be worn as a glove by one attempting to increase his glovehand reaction time proficiency in the baseball skills of catching, fielding and catchthrow agility. It also may be used by an instructor or coach in demonstrating or teaching those skills to players of any skill level. The glove has the palm portion thereof made inflexible whereby a user cannot flex the palm to catch a ball by squeezing it with his glove hand. Instead, the user is forced to use his free hand to trap a ball between the inflexible palm of the glove and the free hand. The inflexible palm portion of the glove can be integrally formed with the glove; it can be an insert, permanently secured into a pocket of the glove; or it can be an insert which can be easily inserted into and removed from a pocket of the glove. Summary of the Hirschgield Invention: Participation in the sport of baseball requires, as does participation in any physical activity involving the use of special techniques, the development of certain fundamental skills. Unless those fundamental skills