1) Shell: chrome 
2) Bottom: ABS or chrome plated mylar disc
3) With pictures placed inside/full color offset printing
4) Different sizes and designs available 
5) ROUND sizes:
  20mm (3/4"), 25mm (1"), 32mm (1 1/4"), 37mm (1 1/2"), 40mm (1 3/5"),
 44mm (1 3/4"), 50mm (2"), 56mm(2 1/5"), 58mm (2 1/4"), 65mm (2 3/5"), 75mm (3"), 90mm(2 3/5"), 100mm(4"), 110mm(4 1/4")
- Other shapes: oval 45x65mm & 60x90mm, rectangle 25x70mm, 40x60mm & 50x90mm, square 37x37mm & 58x58mm, heart 53x57.5mm, pentagon 65x58mm, hexagon 65x58mm,triangle 63x58mm, octagon 65x58mm  
6) Buyers' own designs accepted
7) OEM orders welcomed/full color offset printing
8) Pin type: optional