The Pawleys Island Hammock Wheel Kit is an absolute must have for those who intend to move their hammock on a regular basis. The Wheel Kit is a unique accessory that easily attaches to any Pawleys Island Steel Hammock Stand with poles at least 1.5' in diameter. Using the Wheel Kit will help ensure a longer life for your hammock stand. The durable wheels prevent having to drag the steel stand's protective powder coating across rough surfaces that could scratch the finish and lead to rust, with the added plus that you also avoid unnecessary damage to your yard, poolside, deck or patio. U bolt and nuts are rust resistant, zinc plated steel Minor assembly required