Droll Yankees® A-Series 7.5 in. Seed TrayThe 7. 5 in. A 6 Seed Tray saves spilled seed, while also helping to attract a larger variety of birds. Adding a seed tray turns a tubular bird feeder into a platform feeder that will attract more species, like ground feeding birds. 7. 5" platform attracts a wide variety of birds, including ground feeders like Cardinals Catches spilled seed and saves money! Fits Droll Yankees' Classic, New Generation, Ring Pull, and Bird Lovers feeders No tools needed