Per4M Leg Power Tubes: * Build complete lower body strength for explosive moves * Latex power tube provides progressive resistance * Increase speed and stride length to outpace opponents * Heavy duty nylon webbing for strength and durability * Improve conditioning and stamina to outlast the competition * Adjustable padded cuffs for a comfortable fit * 10 different drill cards for training and practicing * 90-day limited warranty * Model# PER4MLPT