Open and close the clip with one hand to easily and securely close the gathered top of an autoclave bag. Clip permits bag to safely vent internal pressure during autoclaving. After autoclaving, clip holds the processed bag closed for final disposal. The closed internal dimension of the clip is 7/16", suitable for small autoclave bags ranging in size from bench-top to 19" x 23". Do not use with larger bags. 100 per bag.