funhome outdoor chair cushion covers 2 pack, no insert! patio cushion covers replacement 20" x 18" x 4", water resistant patio chair cushion slipcovers, black flower butterfly(covers only) 20"x18"x4"(2 pack) black flower butterfly is up for auction in Patio, Lawn & Garden. The current bid is $1.00, 95% below the $21.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.