Theraworx® Relief Magnesium Sulfate 6X HPUS Topical Pain Relief, 1 Each Eating Aids Improves seating posture while providing Style:Left Ear Improves seating posture while providing back support and comfort * Durable masonite board sercured on back of foam core prevents hammocking in sling back wheelchairs * Conforms to provide support to the lumbar region * Sealed liner protects foam core from moisture * Has a non slip vinyl back to prevent the cushion from sliding * Weight Capacity: 300 lbs WEAK AND DAMAGED HANDS * 10 lbs * Measure tip key and palmer pinch strength in both pounds and kilograms * Measurements are accurate and repeatable * Results are consistent with published Markowitz studies * Indicator remains at the maximum reading until reset * Comes with protective case * 1 oz spray bottle for simple application 5 percent strength magnesium sulfate to prevent and relieve muscle cramps and spasms