SandLock Sandbox Company is the leading manufacturer of Sandboxes, Sandtables, Sensory Tables, Covers, & Accessories. Sandboxes & Sandtables earned the 2007 & 2008 Teachers’ Choice Award. “SandLock really took some time to think about what a parent is looking for in an outside toy for their child.” (2008 Teachers’ Choice Award for the Family Program – Learning Magazine) SandLock has reinvented the traditional Sandbox. The sandboxes are truly the easiest to assemble, made from durable plastic, and are backed by a 10 Year Warranty. Keeping sand dry and free of debris is a must in any playground or backyard. SandLock’s Covers are made from heavy-duty vinyl material with sewn in shock-cord to easily secure cover in place.