Perfect for car, truck, van, RV, home & office use. - Massages and relaxes!! - Provides year-round ventilation. - Reduce fatigue!! - Easy installation - 100% Natural high quality wood beads. They are genuine woods!! - Provides firm, soothing back, and side support - Universal application! one size fits all!! - Polyurethane wire interlace for sturdy & durable construction - Keep your chair cool and fresh!