OUTDECO'S 24-Pack 1/2 inch Slat Fence Spacers are specifically made for installation convenience. Slide each spacer into our OUTDECO Slat Fence Rails to achieve the desired spacing of your Horizontal Slat Fence. If more spacing is desired the slat spacers will conveniently stack within the slat track. This will allow for spacing at 1/2" increments for customizing spacing of 1/2", 1" or 1.5".