Safe Retractable Roof -- Sandbox canopy can be adjust 3 position, and the cover made of weather-resistant canvas,your child will have a long play time, don't worry about showers or ultraviolet rays . Multifunctional Foldable Bench -- This sandbox has 2 foldable benches for up to 4 children or 2 adults. It can covered the sandbox to protect the sand when no kids playing. It is a great place for you play with your children .Each folded bench can support 150lb. Safe and Sturdy Material -- Made of natural wood, treated with high temperature, keep the sandbox strong , Safe and pollution-free .The board is smooth and not rough, don't worry about hurting the kids when play. Bottomless Design -- Size 47”x 47” Sandboxes for kids outdoor uses a bottomless design to facilitate drainage, entilation and adjustment of the depth of the sand. Easy to Assemble -- Tools and instructions that needed are included in the package.Follow the instruction, you can east to assemble. And if there is any problem or suggestion, please feel free to contact us.