Echo Valley 30113 18-Inch Illuminarie Hose Guide,  Set of 3 Never drag a hose thorough the flower bed or garden again Combines elements of metal and glass in a decorative flowerbed protector Lower portion of the stake goes into the ground so the hose rolls smoothly along the green PVC sleeve Luminescent crystals inside the 1-1/2-Inch glass marble absorb light energy during the day Releases stored energy after dusk in the form of a subtle green glow