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Do not base your order on the picture presented.
Features of the Atos Medical Provox Dilator:
The Provox Dilator is designed to facilitate replacement and insertion of the Provox NiD prosthesis. It serves to keep the fistula tract open after removal of and/or prior to the insertion of the Provox NiD. Also, a small circular ridge helps to keep the Provox Dilator in place and reduces the tendency of it sliding out. Included in the Starter Kit and available separately.