Brand Name: SUMOORL Item Type: Open jump rings Material: Stainless steel High-concerned chemical: None Origin: Mainland China Item Length: 0 Item Width: 0 Jewelry Findings Type: Jump Rings & Split Rings Item Height: 0 Item Weight: 0 Item Diameter: 0 Product Features: jump rings kit Model Number: jewelry making materials items types: jewellery making supplies Outer Size: 3mm-30mm Choice: yes semi_Choice: yes