The plastic holder has a triangular profile with rounded corners with a pre-drilled hole for a screw. The product is designed as a holder for an Antifer - treated absorbent material. The holder can be easily mounted on road posts, fences, and other firm surfaces. The holder includes a stainless self-tapping screw for mounting. The holders mounted horizontally to prevent Antifer from being washed away and to protect it from moisture. The road post is not included!