The 6" Semi-Round Bolster is our most popular bolster. The semi-round shape offers multiple positioning heights and contours to support every client. Oakworks bolsters are key building blocks for client positioning. TerraTouch Oakworks’ PVC- free premium polyurethane fabric has excellent resistance to oil, abrasion, and tears. TerraTouch passes testing for Cytotoxicity, Skin Irritation and Sensitization as well as CA TB117 Fire Retardance testing. For disinfecting purposes you may use Protex, MadaCide, MadaWipe, Accell TB, Virox (Canada), PDI Duper Sani-Cloth Germicidal wipe or a diluted 1/10 bleach solution.