These Rubber Playground Borders are manufactured from 100% recycled rubber and includes anchoring pins. Also known as Rubber Curbs they bendable, measure 4" x 6" and are 8' long. Choose from Black, Earthtone Brown, Redwood, or Forrest Green colors at no extra cost. These Playground Borders are NOT pre-drilled which allows for customized anchoring when shaped in a curve or serpentine design.