The Werner Lock-in system comprises a variety of accessories including tool trays, organisers and hooks. These accessories are compatible with the moulded tops of Werner stepladders. Your tools, materials and equipment are easily reachable leaving your hands free to maintain a grip and work efficiently at the same time. The 79001 Lock-In paint cup holds up to one litre of paint. It has a carry handle on one side and a Lock-In system on the other to secure to the top of the stepladder. A built-in magnet holds your paintbrush in place.