10pcs Metal Ball Post Studs O-ring Screwback Spikes Rivets Leather Crafts Accessories

  •  Head diameter: 5mm, 6.5mm 
  • O-ring inner diameter: 8mm,9.5mm 
  • Screw length- Approx.5mm. 
  • More specific dimensions, please refer to the picture. 
  • The screw & O-rings are made of steel. 
  • The Ball Post are made of brass. 
  • Please contact us if you have any questions.!