500 Sets 1 inch 25mm Pin Back Button Parts, DIY Round Button Badge Parts, Set Includes Metal Top, Plastic/Metal Button, Clear Film, and Blank Paper For Gifts Presents, Machine NOT Included 500 Complete Sets Metal Bottom Parts and Covers Plastic Bottom Parts Clear Films Size Chart Special Gift Plastic Bottom Part Diameter: 0.9 inch/ 23 mm,Metal Bottom Part Diameter: 0.9 inch/ 23 mm,Model: D25-250S+250J,Material: Metal and Plastic,Film Diameter: 1.4 inch/ 35 mm,Metal Cover Diameter: 1 inch/ 25 mm,Weight: 2 lbs/ 0.92 kg