They are UNLIKE that of a Metallic Transfers which have minute metallic particles.
The appearance of Metallic transfers closely resembles that of metallic paint.

Metallic Transfers are offered as custom matches as well as the Stock colors Gold & Silver
The pantone references for the Metallic Dry Rub on transfers would be PMS 871 Gold & PMS 877 Silver

The transferred image of a Rub-On-Transfer.com transfer appears as if it was printed directly to the item. Dry rub on transfers are referred to as DRY because they are applied dry, without the need for any liquid. A Rub-On-Transfer.com transfer is not a label, a water-slide decal or a T-Shirt heat Transfer

Important qualities to look for in a transfer are;

A transfer that is opaque, not transparent, therefore it can be applied to a surface of any color without changing the color of the rub on transfer. A transparent yellow transfer applied to a black surface would allow the black surface underneath to show through the transfer, effectively making the yellow rub down transfer image almost black.
A rub on transfer where only the image transfers, a transfer where there is no clear or white border around image that needs to be trimmed, otherwise it is essentially a label. Transfers of this type are not very practical if you have to trim around each and every shape before applying it to the surface of your choice.
A transfer with an image that is at a very high resolution, this will ensure sharp well defined text, lines and images.
Custom Dry Rub On Transfers from Rub-On-Transfer.com offer all of the above & many other options and features needed to produce quality transfers for your projects.

The transferred image of a Rub-On-Transfer.com transfer appears as if it was printed directly to the item. Dry rub on transfers are referred to as DRY because they are applied dry, without the need for any liquid. A Rub-On-Transfer.com transfer is not a label or a water-slide decal.