trolley bracket WasteGuard? mini, 1, 2.5, 3.75, 5 and com-plus. The WasteGuard? range of wall, medi and trolley brackets if specified are supplied free of charge with any WasteGuard? sharpscontainer range, as part of our value added service to help reduce the risk of needlestick injuries. Using our range of brackets enables the user to position the sharp container closer to the point of use.