With its rounded edges, the Rubber Curb 6’ with Spikes is an architecturally pleasing choice for containing rubber mulch on the playground or garden bed. Made from recycled rubber, the curbs are extremely durable and, with their flexibility, can be installed to best fit your playground area. The Rubber Curb 6’ with Spikes is smooth, seamless, and non-toxic. With an unbelievable twenty-year guarantee, this curb will not splinter, warp, or discolor. Installation is easy with pre-drilled holes for the furnished spikes. Each curb includes two stakes and two plugs to fill the spike holes made from the same material as the curb, giving the installed curb a clean finished appearance. The Rubber Curb 6’ with Spikes is bendable, stackable, interlocking, and available in natural brown. Please note: when measuring for your playground borders, the curb overlaps 4 inches as it is connected to another curb, yielding 5.60 linear feet. The curb is available in 4, 6, and 8-inch heights.