DESC: Keep seed from falling to the ground with the Droll Yankees Universal Seed Tray. The 13" diameter of this tray is perfect for offering seed to cardinals, or providing perching for other songbirds. Connect the tray to any pole with a 1" outer diameter using the included clamp. It also connects to any Droll Yankees “A" size tube feeder with the screws provided. For more feeding options, purchase the B-Tray connector to attach the Droll Yankees “B" feeders to this unit. The clear polycarbonate construction is UV stabilized to withstand the sun's rays for several years. Allow cardinals to dine in your yard with the Universal Seed Tray under your feeder. Lifetime warranty.. . Capacity: 0.85 qts., 1.275 lbs.. Dimensions: 13" dia. x 1.25"H. Mounting: pole mount. Construction: polycarbonate. Mfg. Warranty: lifetime warranty