Crafted from top-quality, premium teak, our dining set is designed to weather the elements in style. The dense fine-grained teak wood is rich in natural oils, making it both durable and moisture resistant. Our teak wood is certified to withstand the rigors of adverse climates, but because of teak''s well known micro-smooth finish and quality craftsmanship, many use our furniture indoors as well. Rich in oil, finely grained and precisely fashioned with mortise-and-tenon joineryFinely crafted from 100% premium grade A teakThe chairs are stackable for easy storageStainless Steel hardware used for durabilityThere is a 2 hole for umbrella lid provided to cover hole if no umbrella usedIncludes covers made of Premium Sunbrella Fabric. Our Sunbrella covers are easily removable with zipper and machine washable, and come with ties for easy removal.Cushions Thickness is 2.5".Includes: 12 Napa Stacking Arm Chairs