Trainer tags/connector bars laser cut from 1050 grade aluminium 1.5mm thick.
Approx 15mm x 50mm overall. The slotted hole is 9mm x 4mm
Due to the laser start and stop points there is a small nobble of metal on one edge, however gentle filing will remove it.
Aluminium is a great alternative to sterling silver but they are lightweight, non tarnishing and hypo allergenic.