The Mainstays Waterproof PEVA Shower Liner is lightweight, odorless and chloride free. It has a weighted magnetic bottom to help keep the liner close to your tub walls so water stays inside your shower and drafts outside. A reinforced header makes it easy to securely attach the liner to any shower curtain hooks or rings. The liner's waterproof PEVA construction makes it durable and long lasting, and ideal to be used either alone or to protect any decorative fabric shower curtain. Wipe the liner with a damp cloth for easy care. The liner measures 70 in. by 72 in. to fit in standard tub and shower areas.