Playground mats are available in four (4) different sizes. They are intended to maintain loose fill beneath the swings and at the glide exits. Playground mats are available in black. There are other five optional colors to choose from for an extra charge. You can choose any color according to your needs and requirements. They are ridged under the plane for shock absorbency. Playground mats are manufactured from recycled rubber and meant for commercial use. Buy them now and protect your child from injury. Kids are worth the investment.