Consumers should immediately inspect all wheel-axle and frame-mounting bolts to ensure that they are properly tightened. Rollerblade USA recommends regular inspection and tightening of bolts. After wheel-axle and frame mounting bolts are inspected and tightened if needed, products are acceptable for sale and use. Video instructions on bolt tightening and maintenance are available at www.rollerblade.com. For more information, consumers may contact Tecnica Group at 1-800-361-9090 between 9 a.m. and 5 p.m. EST Monday through Friday or visit the firm's website . Date modified: 2011-03-11