Swim googles adjustment buckle

Replacement buckle for Vicci brand googles.  Should suit many others too I suspect.  Printed in PETG 2 months ago and still going strong with 4 to 5 swims per week.

This is an entry for the replacement parts contest.  Not that I would expect to earn a prize with such a trivial model - it hardly shows off my mad design skills.  But because it is such a simple model there is something that appeals to me about the value proposition: literally 10 minutes to design in FreeCAD, about the same to print.  For less than a gram of filament I saved myself the ~$30 price of a new pair of goggles and saved these goggles from the bin.