90% Nylon, 10% Spandex . . Hand Wash Only . Size Note: This Panties Belt Is High Elastic,The Underwear Size May Not Be Exactly The Same As What You Usually Wear, Please Be Sure To Choose The Size According To The Size Chart(Updated On December 15, Accurate Size Data,Please Feel Free To Buy) . Unique Design-Pearl Massage Ball, The Smooth Pearls Have A Wonderful Feeling Of Being Close To The Human Body, Instantly Making The Whole Body Hot. . Lace Small Back Coverage Back Design, with A Cute Bow.It Is Also The Best Gift for Friends And Partners. . Occasions: It Is Very Suitable for Honeymoon, Anniversary, Lingerie Party, Boudoir Photo, Wedding Night, Valentine"S Day, Bridal Gift And Falling Asleep On Every Hot Night.