LOG2M Birch Log Design Bird Feeder for Mixed Seed PVC tube style birch log design bird feeder for mixed seed Features a metal roof and base with 1/4 thick, heavy-wall PVC 3-1/2 diameter x 15 tall seed tube Equipped with Lexan seed ports with stainless steel squirrel proof shields Stainless steel locking roof clips keep squirrels out Can be hung or mounted on a pole (pole not included)