Replacement Casters only 4 for 7039 MJM Shower Chair Pk 4 Heart Rate Monitors Sliding Rotating Transfer Bench eliminates the 7344301 Sliding Rotating Transfer Bench eliminates the need to step over the side of a bathtub or the ledge of a shower making it easier and safer to get in and out of the tub shower * Sliding feature enables a person to smoothly move across the bench with little effort and reduces stress on a caregiver's back by making it easier to maneuver a person * Rotating swivel top allows for easier transfers into the bathing area and greater accessibility * Height adjustable from 16 23 (40 Packing Content: Replacement Caster 4 *Twin Wheel Casters Have Threaded Stem For Extra Security And Safety *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) *Quiet Mobility (Hard Treads Make A Lot Of Noise)*Non Rust Plastic Body And Wheels *High Load Capacity (160 lbs) *Non Slip Tread Double The Tread Surface For Superior Breaking *Easy Reach Brake Tab