Product Upgraded Features Material: We use the pine wood, while most other sellers only use the fir wood. Obviously ours are more heavy duty Cup Holder: We drill a hole in the middle of the upholder to help drain water away. Hope this humanized update will attract you. Adjustable Chains: Some other sellers’ chains are fixed to the swing. But ours are flexible to adjust the tilt angles. Maintenance: The chains are stainless, so we don’t need worry. Just need to protect the PU paint on the surface.
