STR8 N UP Posture Support Small Solid Black Tens Units ISO 16840 4 Wheelchair Seating Color:Yellow ISO 16840 4 Wheelchair Seating Part 4: Seating Systems for use in motor vehicles * Weight Limit: 300 lbs (136 kg) * Warranty: Back Shell & Hardware: 3 Year Limited Warranty 5 x48 4 x18 4 x36 4 x48 6 x18 6 x36 and 6 x48 ) * Up to 30 minutes after or during video gaming sessions * Up to 30 minutes after driving* or traveling long hours * Up to 30 minutes anytime you want to destress and stretch out your neck and shoulder muscles * Up to 30 minutes in between breast feedings to relax tensed muscles and recorrect your form * Up to 30 minutes before a game of golf for a relaxed and consistent correct form 5 * Measure across the upper chest * Be sure to measure above the bust area * Solid black band with decorative gray stitching and black buckle * Whether you are at the office gym golf course home school or in travel you may be compromising your form and not even know it * Relieves the problems we are wreaking to our bodies and future health due to slouching hunching and stress * Start retraining reminding and realigning your body with the help of Str8 n Up * Str8 n Up is designed based on muscle memory * Wear for only 30 minutes a day and start conditioning yourself to be more aware of improper form so that you can correct your posture and keep it in check * Str8 n Up helps you to know and feel what proper form should be * WHEN TO USE STR8 N UP: * Up to 30 minutes during your lunch or coffee breaks at the office or workplace * Up to 30 minutes prior or after any physical activity (yoga exercising pilates walking running etc