There are 2 types of snap button: Post and Prong type.
Post type has a shaft that requires a hole to penetrate the fabric. Prong type has teeth that penetrate through the fabric.
Post type are best used with densely woven or natural/synthetic fabrics /Leather
Prong type are best used with loosely woven or knit fabrics
Snap button has several sizes, which usually called Line 14 (or Size 14) etc
