Download Product Instruction Manual - English Download Product Instruction Manual - Spanish Features Can be used as a harness booster, high-back booster and backless booster Superior side impact protection with cushioned padding and side impact pods for enhanced safety Comfortable and reversible soft inserts 5-point adjustable safety harness with padded shoulders and crotch covers 4 harness height positions with comfortable arm rests Two cup holders for different sized cups Description The Baby Trend® Hybrid™ SI 3-in-1 Combination Booster Seat with Side Impact Protection provides optimal safety and comfort for your growing child. This forward facing sporty designed booster seat offers your family value as it can be used for an extended period of time with a 5-point harness as well as high-back booster and backless booster modes. The height adjustable headrest provides superior side impact protection and comfort. The side impact pods attached to the side of the car seat frame provides added safety and protection for your little one in the case of a collision. The reversible and soft inserts and two cup holders provide comfort, versatility and convenience for the growing child. Recommended Use Stage 1: Weight 30–50 lb, height 29”–48”, 2 years of age Stage 2: Weight 40–100 lb, height 38”–50”, 4 years of age Stage 3: Weight 40–100 lb, height 42”–57”, 4 years of age Technical Details Product dimensions: 18.00" x 21.00" x 29.25" Minimum weight recommendation: 30 lb Maximum weight recommendation: 100 lb Maximum height recommendation: 57" Toddler car seat (with built-in harness system): 30–50 lb, 2 years of age High–back booster car seat (without harness system): 40-100 lb, 4 years of age Backless booster car seat (without harness system and back support): 40–100 lb, 4 years of age Materials: Head support insert, back support pad, head support pad 100% polyurethane foam View law label Materials: Body insert 83% polyurethane foam, 17% polyester fiber View law label Number of items: 1 Batteries required: No Item weight: 16 lb