These heavy duty blended nylon pole holders can hold boat hooks, fish nets, gaffs, whisker poles, and paddles. They are excellent for holding square poles. Dense closed cell foam rubber is used on the inside to make sure the pole fits snugly and does not vibrate. These pole holders will not scratch your poles. The pole holders come in black. They can either attach to a flat surface or come with adapters to attach to a 7/8" - 1" tubing such as a stanchion or railing.