Normally, the mixed-metal stabilizer supplier will state the metals used and specify the percentage ranges; this will usually be true of epoxide and phosphite content as well. If applicable, sanctions by regulatory agencies will be mentioned. There will be some indication of potentially useful applications and suggestions as to use levels with perhaps additional compounding information. The range of mixed-metal stabilizers in use is very large. This reflects the relative ease of formulating a variety of stabilization systems with existing ingredients, without synthesis of new materials. Instead of 5-10 commonly used lead stabilizers or 10-20 organotins, there are literally hundreds of mixed-metal stabilizers.