ITEM NAME:2x Schaller Style Straplocks Electric Acoustic Guitar Bass Strap Locks Button Descriptio n Function Anti-slip Thread Dia: 4mm Head Dia :11mm/0.35" Total Size: 20 x 50mm/0.9" x 2"(D*Max.L) Materials: Metal Main Color  Tone: black Package Included: 2 x Guitar Strap Lock Button We offer you what you need! 2x Schaller Style Straplocks Electric Acoustic Guitar Bass Strap Locks Button.2 x Guitar Strap Lock Button. Main Color Tone: black. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner.