SKYLINE BACKLESS This 2-stage belt-positioning booster seat pairs superior safety with stylish design. It easily converts from a high back booster to a backless booster, so your child rides safer, longer. 2 layers of side impact protection include an energy-absorbing shell & 10-position, quick-adjust headrest, that grows with your child up to 63″. 2 dishwasher-safe cupholders keep drinks and snacks close by. With plush, foam padding & built-in arm rests, your big kid will enjoy the ride. FEATURES 👉 Spacious design with deep side walls for full head, torso, and pelvic side impact protection. 👉 Two layers of Side Impact Protection feature a deep foam-lined shell and quick-adjust head protection. 👉 Easily converts to a backless booster to keep your big kid safer, longer. 👉 10-Position quick adjust head restraint. 👉 Flexible push-button lower connectors secure the seat to the vehicle. 👉 Two dishwasher safe cup holders are removable for cleaning. 👉 Narrow width allows for 3-across seating capability. 👉 Color-coded belt guides for proper seat belt positioning. 👉 Two armrests for child convenience and comfort. 👉 Energy-absorbing EPP foam included in headrest and back and sides of seat. 👉 Soft, breathable knit fabrics keep your child comfortable. 👉 Optimized cover set design is easily removable for cleaning. 👉 Meets and exceeds all Federal Safety standards. 👉 No assembly required. Additional information 👉 Weight: 4.4 kg 👉 Dimensions: 38 × 46 × 71-89 cm 👉 Child Group Age: 4 Years and above 👉 Child Weight: 18KG to 54KG 👉 Child Standing Height: Up to 160.0cm 👉 Child Seated Shoulder Height: Up to 54.6cm 👉 Seat Area Depth/ Width: 31.75cm x 30.48cm 👉 Shoulder Width: 38.1cm 👉 Rearward Facing Installation: NA 👉 Forward Facing Installation: 18KG – 54KG 👉 Safety Standard: United States 👉 Product Weight (Car Seat): 5KG 👉 Product Dimensions: MAX: 40.6CM (L) x 49.5CM (W) x 88.9CM (H), MIN: 40.6CM (L) x 49.5CM(W) x 59.9CM (H) Video Link https://youtu.be/MfKcwkIecIQ