Color classification
Double white hole board + white frame 135*20*98
Single layer black hole board + black frame 55*20*68
Double white hole board + white frame 95*20*98
Double white hole board + white frame 115*20*98
Single layer white hole board + white frame 55*20*68
Single-layer black hole board + black frame 115*20*68
Single-layer black hole board + black frame 135*20*68
Single-layer black hole board + black frame 75*20*68
Single layer black hole board + black frame 95*20*68
Single-layer white hole board + white frame 75*20*68
Double black hole board + black frame 95*20*98
Double black hole board + black frame 115*20*98
Double black hole board + black frame 55*20*98
Double black hole board + black frame 75*20*98
Single layer white hole board + white frame 95*20*68
Single-layer white hole board + white frame 115*20*68
Double black hole board + black frame 135*20*98
Double white hole board + white frame 55*20*98
Double white hole board + white frame 75*20*98
Single-layer white hole board + white frame 135*20*68