● All-Weather and Safe Material: This chair set adopt ASTM and CPSIA certified HDPE material which is waterproof, sunscreen, anti-fading, high hardness and anti-corrosion, ensuring long lasting outdoor use. Comparing to regular wood material, the high density polyethylene material will not crack, chip or peel under long-term sun exposure.● Heavy-Duty Structure: Each outdoor kids chair weighs up to 12.5 lbs so that the kids chair stands firmly on the ground and is not easy to knock down by accident. Especially in strong wind or heavy rain, you don’t need to worry about the chairs outside being blown away anymore. It is suitable for both indoor and outdoor places like home, backyard, garden, lawn and kindergarten.● Strong Weight Capacity: Using strong and thickened material, this children chair can even withstand the weight of 165 lbs and is unshakable even under the max load. The stability is obvious with multiple screw fastening on the surface. And the triangular structure under the seat enhances load capacity. ● Comfortable Sitting Experience: The spacious seat and wide backrest are specially designed so that children can sit more comfortably and enjoy ample space to wiggle around. It also promotes good and healthy sitting posture. And all edges are carefully polished to protect children from scratching. Each chair measures: 14" x 13" x 22.5" (L x W x H). Seat height: 12".● Easy Assembly and Maintenance: The assembly is easy and quick with included instructions and accessories. The smooth and waterproof surface largely facilitates cleaning steps, simply wiping down with a cloth. Also, the slatted seat can prevent water from accumulation in rainy days.