https://bestbeads.com/10mm-flat-ROUNDED-loop-end-ANT-COPPER--10-pcs_p_20900.html
10mm flat ROUNDED loop end ANT COPPER - 10 pcs-BB-L-CL-121AC
10mm flat ROUNDED loop end ANT COPPER - 10 pcs-L: 7mm W: 13mm H: 4.5mm Hole Size: 10.5mm x 2.1mm Loop size: 2.5mm Material: Zinc plated with copper Or