REC Relax is absolutely safe very easy-to-print material.
No smell while printing, very good for home and office use.
Bag with a zipper and silica gel. This system allows reliably storing consumables between 3D printing sessions
Spools have special weight stickers - this system intended to indicate the amount of thread remained on the spool will allow you to be sure that the part can be printed when the spool is not full.