Cloracks One Screw Stand, Christmas Tree Stand for Live Trees up to 11' Tree, Green Base (Large) Easiest To Use, Insert Tree, Twist the Patented One Screw Large Stand Can Hold Up To An 11' Christmas Tree, Medium to 6' High Capacity Water Reservoir Tank Up To 1.5 gallons No Wobbly Legs, Base Is Designed For Sturdiness Large Size Stand Can Be Converted for Year-Round Use with Optional Insert