descriptionThis box spring clasp lock is suitable for bracelet locks and you have to use a spring in the hole to make it work. Item type: 3D print model of the jewelry box clasp lockSize: 20x10x4.16 mmapproximate weight:yellow gold 14k: 7.84yellow gold 18k: 9.38silver 925: 6.31File formats: STL,OBJ, 3dm,ZPR (Stl and OBJ file is for printing , 3DM and ZPR file is for editing or modifying in matrix and ZBrush)Recommended Material: yellow gold 14k & 18ksilverplatinummore jewelry spring clasp locks:

https://www.cgtrader.com/3d-print-models/jewelry/necklaces/parrot-clasp