It is advised that you use an underlay for your carpet or rug and there are two types of underlay depending on whether your rug is to be on a carpeted surface or on wood/tiles etc.
Rug Anti-slip stops slippage and rugs creeping
Prolongs the life of the rug especially if you have any uneven floor boards/tiles
Allows air circulation under the rug
Minimises any risk of colour transference from the rug to floor surface
