Tumax 50-Piece Plant Anchors For Trellis Design and Vine Supports Metal vs plastic; only these stand the test of time for your DIY trellis design Train garden climbing vines, shrubs, patio plants and espaliers to walls and fences with your own unique design Many uses; outdoor mister system, patio decorations, string lights No screws, no nails, no cracked wall, no mess 50 count bag of anchors for small to medium designs, 2 to 3 bags for large layouts