The egg shaker is a good investment, giving you the ability to add some natural percussion to your recordings for a very moderate price.
The egg shaker itself is all black, except for the "Thomann Music Is Our Passion" text on one side of the egg which is somewhere between white and grey. There is a quite visible and uneven seam (not as in textile, but as the molding together of two pieces of plastic) in the middle of the egg. I am not bothered by it as long as the egg stays in one piece (which it has so far), but you can feel it if you slide your finger across the egg.
The egg shaker is a nice to have percussion instrument. It is loud enough to be heard in moderately noisy environments. It incidentally also works great as a toy for cats, being tested and approved by a persian cat several times.
Given the very low price, I think it is a no brainer to try it out if you need some percussion for one of your recordings. That, or if your pet needs a new toy to play around with that can sometimes be used as an instrument.