Metal eyelets
Style : Square-beveled-shaped, four prongs
SKU : JCE21-NL
Measurement :
> Inner : 21mm x 21mm
> Outer : 37mm x 37mm
Color : Nickel
Quantity : 100 sets (each consists of 2 pieces)

Note : no need hand-press or machine, just use a ruler (or something hard) to bend the prongs down to secure the eyelet set.

Please click to see more photo.