Yankee Tipper The Yankee Tipper features a roomy, comfortable, 25 cm (10 in.) diameter platform that allows ergonomic positioning of cardinals and other ground-feeding birds. Squirrels are exluded by virtue of their weight, temporarily collapsing the clear plastic platform and causing them to harmlessly fall to the ground. The Yankee Tipper comes with a lifetime warranty from the manufacturer. One color: classic black. Holds a generous 2.3 kg (5 lbs) of seed.