Prong Lifter For Sizes 0.5 to 2.5mm Jewelry Prongs Prong Lifter Is 4 1/2 X 1/4 X 1/8 Inches, And Comes With It's Own Vinyl Sleeve For Clean Storage A Professional Style Jeweler's Tool Used To Loosen Gem- Holding Prongs To Make A Quick Adjustment This Solid Steel Tool Will Fit In Any Toolbox, And Weighs Only 1 Oz 7 Size Choices On This Tool, From 0.5 To S.5mm-well Balanced In The Hand For Best Results, Always Use The Right Tool For The Job, So As Not To Damage Prongs Or Gems