1/8" clear acrylic speaker mount developed for Stern Stars, but likely works on other games that would be updated with the BalleySternOS mod. Comes with 3 screws to mount to the game, the speakers come with own screws. Please use caution when screwing in speakers, to hard, tight, fast could crack the acrylic.

Panel is 10" wide, 3 3/4" tall. Designed to fit discreetly inside back back to cabinet access hole. Stern Stars has a air grill the speakers project through making this an easy mode to remove.

Discussed initially on this Pinside post - https://pinside.com/pinball/forum/topic/stars-2020-new-code-for-stern-stars-1978/page/10#post-7441440

Designed for these speakers on Amazon - https://www.amazon.com/gp/product/B07CRP7YBT/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1