The base of the rotating Christmas tree is made of reusable plastic, which is wear-resistant and durable. This Christmas tree accessory is a decoration that can add joy to a Christmas party. Two sizes are available. The 66cm model is suitable for Christmas trees with a trunk diameter of approximately 3.2cm/1.25 inches and up to 7.5FT/30KGS. The 80cm model is suitable for trees with a trunk diameter of approximately 3.2cm/1.25 inches and up to 8.5FT/30KGS. The rotating tree stand automatically rotates back and forth. This advanced automatic two-way rotation helps avoid twisting the light line. It is safe to use and easy to assemble. Suitable for indoor and outdoor artificial trees. Ideal for homes and shops. It can also be used as an umbrella stand for gardens, beaches, or camping. Actual color may vary slightly from the images. Please allow a slight deviation in measurements. Color: Green. Weight bearing: 70-80 pounds. Aperture: Supports a maximum inner diameter of 3.3cm; three adjustable screws. Rotation method: 360-degree bidirectional rotation. Assembly Instructions: Press the 4 legs into the cross channel at the bottom of the stand. Place the tree into the top hole of the stand and turn the 3 triangle screws manually to hold the trunk tightly. Keep the tree upright for smooth operation. The light cord must be mounted around the trunk and then connected with an AC extension cord or wall outlet. Plug the DC plug of the adaptor into the DC jack in the switch box, then turn on the switch. Caution: The tree must be installed upright and balanced at all times for the stand to function properly. Ensure the tree can rotate properly for a few minutes before decorating. Make sure the tree is not obstructed by the light cord. While the stand is working, keep loose objects away from the tree. Pull the adaptor from the AC outlet if the unit does not work. This is an electronic product and not a toy. To avoid the risk of fire, personal injury, and electric shock, it should not be played with or placed within the reach of children. Package includes 1 set of Rotating Christmas Tree Base. The Christmas tree is not included.