Regular – simple most economical stamp for soap and clay. Art elevation is very shallow so it is very easy to hit base plate when pressing. This is entry-level stamp mostly for cold process soaps.
Deep – Artwork is more elevated, which makes stamp much easier to use. In most cases, deep stamp is universal stamp for reasonable price. It works with cold process soaps and highly recommended for hot process soap as well as pottery and clay work. For hot processes we also recommend to use wood handle.
Premium (Crystal Clear) – this is upgraded version of deep stamp so it has same elevation as deep + it is polished to make surface less sticky which makes it much easier to operate and clean.
Rubber – typical ink print stamp (paper, fabric, wood mediums) done to a custom size. Not suitable for embossing into soaps.
Aluminium, Brass, Stainless Steel - those are metal embossing stamps, best option for durability. They can press soaps, candles, wood. Metal stamps can be done with torch branding handle or electric iron handle allowing them to be heat up and melt sub straight material.