The Harley Nodular Ring Cushion has been very cleverly designed with its nodular shaped polyurethane foam allowing air to circulate freely between it and the user, helping to speed up the healing process.Individuals suffering from post operative trauma or haemorrhoids are just two of the groups that can benefit from the use of this exceptionally comfortable ring cushion with its clever nodules that actually work to take pressure away from the affected area. The Nodular Ring Cushion is supplied with its own cover and additional covers are available in this area of our shop if required.