Adjustable: The inner hole can be adjusted, with adjustable opening plug, 3.2cm and 2.5cm. It can rotate and adjust the fixed nut to stabilize the trunk. Long-lasting durability: Cast iron metal bracket, heavy-duty steel construction. It won't be easy to deform, can be used for a long time and stay hard. Black paint treatment surface, smooth and bright, anti-rust, durable to use. Portable and Foldable: Folded Size: 26.2 x 13 x 13cm, Folded Length: 55.1cm, Extendable Length : 70.1cm. Four-legged design, makes the base more stable and very balanced. Foldable design makes it easy to carry or store. Multiple Uses: Suitable for artificial Christmas tree indoors, outdoors, home, commercial plaza, etc. It can also be used as an umbrella stand to support fishing umbrellas, beach umbrellas and parasols in gardens, beaches or camps. It is also an ideal choice for advertising umbrellas, poles, wedding arches or gardens.