-Set of 4 Bat Tops for Arcade1up TMNT Bat tops were used on arcades in the USA in the 80s/90s and still used today. They are very effective for fighting games and pulling off special moves. The ball tops are common in Japan, and are not very effective in giving you a grasping experience. Ditch the ball tops and make your cabinet look authentic like the original USA cabinets! Set of 2 Bat Top Replacements. Compatible with Arcade1up, AtGames Legends Ultimate Arcade, Pandoras box, and any JLF Joystick. Easy to install, simply unscrew the old ball tops, and screw in the new bat tops. You may use pliers with added protection around the shaft, such as a towel, to hold the stick in place and hand tighten the bat top. - Set of 4 high quality molded joystick bat top replacements. - Available in different colors and mix and match sets. - Rubber washer inside prevents bat top from slipping and twisting off during game play. Other manufacturers skip this essential piece. - Easy installation, simply unscrew the old ball top, and screw in the new bat top by hand twisting. You may use pliers to hold the shaft in place (with padded protection on the stick) and hand twist the old ball tops off, and twist on the new bat tops.