Yes! This is a "Slinky" toy. It will represent a Type 3 curl pattern.
Yes! This is an ink pen. Focus on the Spring . . . it represents a Type 4 curl pattern.
Okay. Let's take a closer look at the small spring. Does it look familiar? This is just like Type 4 kinky/curly hair.
I pulled the "Slinky" out to give a realistic look at how big the diameter of a curl can be.
I am elongating/pulling the smaller curl pattern here. This elongation represents "texturizing and reducing the tightness of the curl pattern. As I pull, I am elongating the hair strand, and the hair pattern is going to either become a "ripple" or just straighten out. Please note that this little metal spring had a little resistance to pulling on it and I needed to put my inkpen back together to write with. Despite this technical difficulty, can you see that the smaller the diameter of the curl pattern, then the less beneficial texturizing becomes? If God did not give you a "Spanish wave" then you may have to braid/plait your relaxed hair while wet and let it dry to get a deep wave look!
Now, check out me pulling out the "Slinky." The bigger the diameter of the curl, then texturizing will successfully deliver more defined waves like a "Spanish wave." Can see the difference between the two "curl patterns?" Texturizing makes more sense for people with Type 3 curl patterns that want to tame frizziness and sport more waves than curls.