100% Cotton -Made of ultra soft 100% Hypoallergenic polyester fiber filler without odors or allergens retardants,mercury, lead, and other heavy metals.100% Cotton cover. -Insert cut size:12? x 12?,31cm x 31cm.Unit weight about: 0.66lb/300g.Suggested pillow cover size: 10-11 x 10-11 in. -Easy to clean and dry:Machine washable.Please wash it in gentle cycle with warm water.Do not bleach or iron. -Cotton fabric and tight stitching provide ultra toughness that guarantee the inserts stay intact during daily use. -What you get: 4 x throw pillow inserts(12 x 12 inches),12 month warranty our friendly after-sale customer service.