10mm metal ring snaps. Will fit 10mm die press. Do not fit prym pliers
Each unit is complete 50 snaps, this consists of 2 rings and 2 sockets, 1 male 1 female.
Coloured rings brass with enamel colour coating stainless Steel caps. Plain stainless steel rings also. Nickel free lead free and certified okeo tex 100. 90 Newton pull tested.