Roho Cover Only for #1R109C or QS109C 18x16 Hi Profile Balance Disks Exercisers specs * Available in 3 Color:Yellow specs * Available in 3 attractive colors: Blue Ridge Jade and Rosewood * D578 Model features newly designed back support to provide maximum comfort * 200 lb 90kg * Digital lightweight Smedley spring dynamometer offers accurate grip strength readout * Has 5 preset grip sizes * Auto captures and displays maximum grip force * Assesses results according to age and gender * Saves stores results for fast retrieval with up to 19 users * Standard Replacement Covers for the folowing cushions: * ROHO© Single Compartment (HIGH MID LOW PROFILE) * ROHO© Dual Compartment (HIGH MID LOW PROFILE) * ROHO© ENHANCER© * ROHO© MOSAIC© * The ROHO© Standard Cushion Cover is a textile enclosure intended to protect the cushion * 18 x16 * High Profile * 6 Month Limited Warranty