This item being offered is a 1960-70's Bulova-Caravelle watch case back opening tool.  It works on other brands also.  It is especially good on older watches with the protruding notch.  It measures just short of 3" long.   It looks to be in very good condition.  Selling in AS-IS condition as pictured and described.  Buyer to pay $4.00 shipping US, out of country $15.00 first class international mail.