Mighty Lever Jar Opener : The flexible stainless steel band is fitted around a lid, and then clamped tight using the screw at the end of the handle. The handle can then be used as a lever. Suitable for tops 20 to 110mm 3/4 to 4 1/2” diameter. Weight 88g. For further information please contact your local shop or call 01908 644133. We look forward to hearing from you.