Complete four corner seating on your SandLock sandbox with the SandLock Corner Seat Kit. This kit includes two seats that are made from HDPE plastic and easily attach to your sandbox with the included allen wrench. Simply place the seats in the center of the sandbox for storage where they"ll pull double duty as support for the cover.About SandLock Sandbox LLCKids are top priority when it comes to SandLock Sandbox products. SandLock believes every child can benefit from sand and water activities. The company based in Westmont Ill. considers its products as foundations for education - teaching art literacy technology and more. All products are designed to be attractive durable and safe. SandLock offers a complete line of sandboxes and sand tables to meet all your needs. SandLock products provide kids with fun opportunities to learn and play.