Jewelry Making Finding Kit, Including Iron Open Jump Rings & Bead Tips & End Chains, Zinc Alloy Lobster Claw Clasps, GoldenSize: about Iron Open Jump Rings: about 5x0.7mm, inner diameter: 3.6mm, 300pcs; Iron Bead Tips: about 8x4mm, hole: 1.5mm, inner diameter: 3mm, 300pcs; Zinc Alloy Lobster Claw Clasps: about 12x6mm, hole: 1.2mm, 100pcs; Iron Ends with Twist Chain Extension: about 50x3.5mm, links: 5.5x3.5x0.5mm, 100strands; Plastic Box: about 10.3x1.7cm, 1pc.