Original Stanley cover — part H2900039150. Direct-fit replacement cover for the STST1-79231 Workcentre (Type 1), made to match the original mounting points and external profile so it snaps into place like the factory component. If your Workcentre has a cracked, broken or missing trim/lid cover this genuine Stanley replacement gets the unit closing and working like new without replacing the whole organizer. It’s a small, commonly stocked Stanley parts item intended for simple repairs, and a handy single-component option among common power tool parts for workshop storage gear.