neen patterson medical probe anuform multilingual neen anuform intra-anal and small intra-vaginal probe, the revolutionary contoured shape of the anuform provides a sound electrode / tissue interface which allows for comfortable muscle stimulation and accurate biofeedback. as anuform always sits in the same position comparable emr readings can be taken over different sessions.when the anuform is inserted, the probe allows the anal sphincter to close around the narrow neck of the probe in place. revolutionary shape for repeatable positioning and ambulatory use, can be used with most muscle stimulators and biofeedback units, always refer to manufacturer's instructions before use. single use pack and single orifice use, medical grade stainless steel.