Plastic snaps. Sold in sets of 100 or 1000. Each set contains cap, socket, stud and post (the post looks like the cap, but the diameter is smaller).
Cap diameter approx. 12mm
Post diameter approx. 11mm
*Please note that these are not heavy duty
Sold in multiples of 100 (or 1000's for Bulk pricing).
Quantities will be increased to nearest 100 or 1000, for orders that aren't in multiples of 100...