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The Clek Foonf is a convertible car seat designed for extended rear-facing and forward-facing use, with an adjustable headrest and a steel anti-rebound bar for rear-facing. It uses the REACT rigid-LATCH energy absorbing crumple system for forward-facing protection and is built to fit three-across due to its narrow 16.9 in width. It's suited for children who can sit upright alone and stay rear-facing for as long as possible, then move forward-facing when ready.

The Britax Highpoint is a 2-stage belt-positioning booster that converts from a high-back booster to a backless booster. It fits children from 40 to 120 lbs in high-back mode, includes a 10-position headrest, SecureGuard clip, color-coded belt guides, three layers of energy management, and a machine-washable cover.

The Maxi-Cosi Tanza is a high-back belt-positioning booster for children weighing 40-100 lb and measuring 43.4-57 in. It has a 10-position adjustable headrest, rigid LATCH connectors, a foldable travel design, carry bag, removable cup holder, and machine-washable fabrics.

The Chicco MyFit ClearTex is a forward-facing harness and belt-positioning booster seat for growing children. It includes a five-point harness for children from 25-65 lbs and converts to a high-back booster for children from 40-100 lbs, with flame-retardant-free ClearTex materials and GREENGUARD Gold certification.

The Clek Oobr Mammoth Ziip is a high-back belt-positioning booster with Rigid-LATCH, an adjustable headrest, deep side wings, a reclining back, and a removable seat back for backless use. Its Mammoth cover is made from 70% Merino wool and 30% Tencel, and the seat is designed for children 43.3-57 in tall and 40-100 lb.