I purchased the rev a shelf cutlery insert. I couldn’t find an insert that fit my drawer so I felt I didn’t have a choice but to buy this. It can be cut to fit and I’m very impressed with the quality. The extra expense, compared to plastic inserts, is worth it. I had one of those 3 piece adjustable plastic inserts for a long time and it always slid around and fell apart in the drawer.
Generally has to be cut to fit the exact dimensions of your drawer, but once done, every inch of the drawer is utilized. Super solid construction and attractive.