1-Polish & brushed stainless steel clasp.
2-Gold plated steel clasp
3-Rose Gold plated steel clasp
4-Pvd coated steel clasp
All 3 clasp is not stamped & suitable only for Hublot straps .
Its Available in 3 sizes which is 20mm, 22mm & 24mm Strap width . Price is for the Clasp only .Shipping is free to most places.