These Klein Tools 60511 Heavy Duty Knee Pad Sleeves are perfect for adults who need to protect their legs while on the job. The pads are made of a durable combination of polyester, nylon, foam, natural rubber, neoprene, rubber, and latex materials, ensuring maximum comfort and protection. The flexible style and knee-length design make these pads easy to wear and remove, while the California Prop 65 Warning ensures that you are aware of any potential hazards. Measuring 14.6 inches in length, 7.7 inches in width, and 0.75 inches in height, these knee pads are a must-have for anyone who wants to stay safe while on the job.