Features: These barrel clasps have a built-in safety screw Lock which is very durable and easy to screw together. These screw clasps are perfect for repairing your existing jewelry or creating homemade jewelry, necklaces, anklets, charm bracelets or any craft / fashion projects with ease. They have a beautiful and shiny appearance that keeps your jewelry looking brilliant. Each screw clasps measures approximately 4 mm x 15 mm. They're the perfect size. Each clasp has an open ring on each end. These jewelry clasps fasten the ends of either a necklace or a bracelet together by screwing the two pieces together and forming the barrel shape. 100 pcs screw clasps in one package. With Kind retail packaging. Specification: Material: Brass Color: Gold,Silver, Size: One Size Length 1.4cm/0.55" Diameter:0.5cm/0.2" Quantity: 100 Pcs Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 100Pcs x Screw Clasp