(2pcs) Material: authentic solid 925 sterling silver; sterling silver is hypoallergenic, nickel free and lead free - a good choice for those who have sensitiveskin; Size: about 16mm long x 11.4mm wide (0.6 inch x 0.45 inch); Each closed ring - outer diameter about 3.8mm (0.15 inch) and inner diameter about 2.1mm (0.09 inch) Long tube slide open clasp clock help design multiple strands bracelet, anklet, necklace, other layering jewelry easily and conveniently; this is slide open, Not magnetic, clasp, you need to either Add wire, string or jump rings to attached it to your jewelry or craft These slide lock multi-strand tube clasps with closed loops for secure layering attachments for handmade layering multiple strands necklaces, bracelets, and anklets. A material and quality assurance certificate of these real 925 silver clasps issued by Adabele, USA is included; These jewelry end closure are packaged into Adabele's trademarked bag These Adabele’s sterling silver multi-strand clasps with multiple closed loops feature stratified parallel alignment bars engineered to secure and separate layered strands on handmade necklaces, stacked bracelets, and choker bands. Fabricated from a standard precious metal alloy composed of 92.5 percent pure silver and 7.5 percent structural stabilizing copper, each component is struck with a standard ".925" hallmark stamp to verify material authenticity and elemental composition. The mechanical framework consists of matching metal interlocking plates, slide tubes, or spring bar assemblies equipped with a vertical row of individual, evenly spaced closed loops along both outer margins. These independent attachment points allow jewelry designers to anchor multiple lines of beading wire, silk threads, or metal chains directly to the closure piece without causing the individual strands to bunch, cross, or tangle during wear. The structural geometry of these multi-row silver connectors ensures uniform weight distribution across all connected strands, maintaining flat horizontal alignment against the skin. These professional-grade jewelry fasteners deliver standardized millimeter length dimensions, specific loop counts, and exact vertical spacing measurements to satisfy the precise calculations of commercial design lines, wholesale craft inventories, and manual assembly workshops. The exterior surfaces are smoothed and deburred to eliminate sharp metal edges, protecting adjacent materials such as delicate glass seed beads, organic pearls, and fine cable chains from friction or structural abrasion. Available in multi-loop configurations, these multi-strand jewelry fastener clasps ensure consistent metal color matching for all diy craft and jewelry making projects.