Group-Lock-Box-with-Window-Master-Lock-S601-p-The-Master-Lock-S601-Group-Lockout-Box-is-made-from-stainless-steel-to-withstand-the-toughest-environments-It-includes-19-lockout-holes-including-one-on-the-front-latch-for-the-operations-lock-The-box-includes-a-removable-cup-that-creates-a-clear-impact-resistant-window-on-the-front-allowing-participants-to-see-keys-are-secured-inside-the-box-during-a-group-lockout-It-also-features-a-side-window-offering-visibility-to-unused-locks-The-st