For anyone working in the construction and electrician trades, you know how often you have to bend and stoop and prop yourself on your elbows and knees. OSHA and NIOSH recognize this as a contributor to RMI's (repetitive motion injuries). Columbia Safety and Supply offers an increasing selection of elbow and knee pads to protect yourself from avoidable and preventable injuries, as well as provide comfort on hard surfaces.. You will find that being protected and comfortable on the job means being productive on the job.