Make work comfortable with ergonomic support. These cushions are light and portable, easy to move with you wherever you need support and comfort. The total weight of the backrest and footrest is 0.88 lb. (400 g). This black backrest and footrest set is an affordable way to help you maintain a relaxed, healthy posture. Is your work setup causing soreness? This comfortable duo can fix posture problems and ease back pain. A footrest can help blood flow in the legs and feet for people who sit for long periods. Sitting upright helps keep your gaze at the right level to minimize neck and eye strain while working on computers. The set fits best with standard desk chairs. Use the strap to secure the back cushion to your seat and place the footrest on a carpet or a chair mat. For crafters, hobbyists, and puzzle lovers, this cushion set can upgrade a folding table and solid-back chair for comfortable relaxation. College students can use these memory foam cushions to get the most out of late-night study sessions in the dorm. Teachers and school administrators will appreciate this cushy set which can be used in the classroom or office. Finally, use the cushions for travel to to alleviate pain during long car or bus trips. Details: Black 12.5" x 13" x 4.25" 0.88 lb. (400 g) backrest and footrest total weight Fits best with standard desk chairs Strap secures the back cushion to your seat Footrest great on a carpet or a chair mat Memory foam Mesh material