One set consists of 4 parts - 2 counterparts, and 2 washers.
User manual: 1)Center the provided washer on the fabric and draw in the two rectangular cutting lines
2) Cut through the two drawn marks
3) Push the magnetic snap halves through the fabric
4) Place the washer over the prongs and while pushing down very firmly, bend your prongs outward one at a time.
Not suitable for children under 3 years. - swallowing hazard 
