Metal Type : 14K Solid Yellow Gold Country of origin : USA Product dimensions LxWxH (MM) : 21x6.5x1.3 Hook & Eye outside Dimensions (MM) : 11x6.5 & 10x6.5 Ring(s) Inside Dimension : 0.067" (1.7mm) This 14-karat yellow-gold hook & eye clasp features an elegant teardrop-shaped eye with bead details and a hook with a ball end. A hook & eye clasp is a two-part clasp that closes by simply sliding the hook through the eye. This clasp tends to be larger than other clasp types and is ideal for larger designs, bead strands or bib-style necklaces; it relies on the necklace having enough weight to keep the clasp secure.