Most gates on stock joysticks are square.  Outside of the square gate, the octogate is the 2nd most popular gate among gamers.  While the square gate works well for some fighters, certain circular motions are easier to pull off with a octagate. 

These are Qanba one piece circle gates. We emphasize 'one piece' as a single mold provides more stability and accurate joystick motions due to minimizing vibration.  Some gates are constructed of a two piece design where if you wiggle the center piece, imperfect motions are inevitable because of this. 

As noted in the product title, this fits the following joysticks:

• Qanba branded joysticks found in their Q2 and Crystal Fight Sticks
  
• Sanwa Denshi JLF Series (non-silent) Models Include: JLF-TP-8YT-SK, JLF-TP-8S-SK

The length and width of this unit perfectly fits Sanwa Denshi's JLF-TP-8YT-SK metal plate.

Sample image of octogate with Sanwa Denshi JLF-TP-8YT-SK joystick (not included).

We also have a Circular Gate variant.