Droll Yankees Bird Feeder Tray, Platform Seed Catcher Accessory Attachment, Clear, OMT SAVE SEED: Platform catches spilled seed from bird feeders to avoid wasted seed and to save money ATTRACTS GROUND FEEDERS: Allows ground feeding birds like Cardinals to also take advantage of the feeder EASY INSTALL: No tools needed - connect the Omni Seed Tray to the feeder base with the included threaded black plug. OUTDOOR USE: UV-stabilized polycarbonate is resistant to warping and discoloration from prolonged sunlight exposure COMPATIBILITY: Accessory fits Droll Yankees' Classic, New Generation, Ring Pull, and Bird Lovers feeders 1/2" Omni seed tray attaches with threaded plug to all DY tube feeders and other brands