Ok thanks
The rainbow colour scheme doesn't have a even dye on the colour where I found some white dots. The 550 paracords from this vendor has very loose weave and soft core causing the cord to be flat. As the cord is not substantial (felt like 3mm), some knots tied are not as nice as using a stiffer cord. When tensioned, I can feel the core strands moved or break, so I doubt you can use the cords for any weight bearing purpose. Those cords in single colours also have out layer fray easily that I have to use a torch to burn off fibers appearing on them. In general, I didn't think this vendor provide quality product and shipping was later than estimated dates (even when shipping charge is applied to each item). I ordered similar items from another vendor (Coobigo), they are definitely better and with free shipping service.