Using this DeWalt measuring tape is easy. Just pull out the tape to the length you need for your measurement. When you're done, press the lock button to keep it in place or release it to retract the tape. For safety, don't pull the tape out too quickly as it might snap back and cause injury. To maintain this tape, keep it clean and dry. Wipe it with a soft cloth if it gets dirty. Avoid dropping it or exposing it to extreme temperatures, as this could damage the tape and affect its accuracy.