P403150 Prym Rivets. Available in various sizes, suitable for different material thicknesses. The differences are in the diameter of the head as well as in the length of the inner pin. The higher the pin, the thicker the material to be riveted may be, such as leather. In the package you will find the right tools next to the tubular rivets - so all you need is a hammer to work with. The tubular rivets are made of stainless, silver-coloured brass. Available in a practical multi-pack! 403150 3/4mm thickness brass silver 20pc