Pillow Cover Allergy Relief King size Zippered Canes Folding MJM's Exclusive Reinforced Caster System Select Ear:Left Ear MJM's Exclusive Reinforced Caster System Allows Additional Structural Support To Our Entire Product Line Our Positive Engaging Lock Holds The Wheel Securely So There Is No Swivel Movement When Locked * The Unique Design Allows Easy Movement On Hard Surfaces And Helps Eliminate the Wheel From Falling Into Cracks * Soft Non Marking Tread * (It Will Not Leave Black Marks Or Leave Groves In Wood Or Vinyl) * Quite Mobility * (Hard Treads Make A Lot Of Noise) Non Rust Plastic Body And Wheels * High Load Capacity (160 lbs) Light weight weighs only 19 lbs but has a weight capacity of 300 lbs Zippered Pillow Case * King * 100% polyester tricot with a breathable urethane membrane * An effective barrier against dust mites and other harmful allergens * Lightweight and economical * Great for travel * One cover per package