Turn railings into floating gardens with our original vertical railing planter. RailScapes are designed to disappear and engineered to suspend up to 15 lbs. (25 lbs. at the foot of the railing) for vertical gardening. These tool-free and lightweight railing planters are a game changer. Compatible with various railings, including metal, wood and vinyl, making it suitable for both indoor and outdoor spaces. To install, simply hook and flex the anchors between spindles. The anti-slip/anti-scratch bumpers hold it in position without leaving a mark. We recommend carrying both the Narrow and Thick sizes for customers to select their preference. To determine the right plant clip, measure the railing's spindles from back to front. Spindle sizes between 0.5 in to 0.75 in generally fit metal rail posts and are compatible with our Narrow size, while spindle sizes between 1 in to 1.5 in generally fit wood and vinyl rail posts and are compatible with our Thick size.