Product details and Dimensions:

• Item type: 3d print model of the jewelry lobster clasp lock
• Size: 12.5 x 7.5 x 3.5 mm
• Weight: approximately Silver-0.7 g 14K-0.85 g 18K-1g
• Gemstone sizes: round 1.0 mm - 46 pcs or round 1.2 mm - 46 pcs (enlarged model)
• File formats: STL and 3dm (Stl file is for printing and 3DM file for editing or modifying)
• Recommended Material: silver S925, Gold, Platinum, Bronze, Brass

more lobster clasp

https://www.cgtrader.com/3d-print-models/jewelry/necklaces/diamond-lobster-clasp-lock

https://www.cgtrader.com/3d-print-models/jewelry/bracelets/gold-lobster-claw-clasp-bracelet-chain