![Retaining Wall Blocks for Every Landscaping Need; Reliable and Beautiful. | VERSA-LOK Retaining Wall Systems Retaining Wall Blocks for Every Landscaping Need; Reliable and Beautiful. | VERSA-LOK Retaining Wall Systems](https://www.versa-lok.com/assets/image-cache/sites/versalok2016/uploads/images/bricks.c050844d.png)
Retaining Wall Blocks for Every Landscaping Need; Reliable and Beautiful. | VERSA-LOK Retaining Wall Systems
![4-in W x 2-in H x 8-in L Concrete Block Concrete Block in the Concrete Blocks department at Lowes.com 4-in W x 2-in H x 8-in L Concrete Block Concrete Block in the Concrete Blocks department at Lowes.com](https://mobileimages.lowes.com/productimages/04549d4e-72b2-4843-8a8c-969268a1f0a2/00509119.jpg)
4-in W x 2-in H x 8-in L Concrete Block Concrete Block in the Concrete Blocks department at Lowes.com
![what are these bricks used for? Got them for free, they told me they were fire bricks but they got a "lip" in the back that makes them hard to stack. : what are these bricks used for? Got them for free, they told me they were fire bricks but they got a "lip" in the back that makes them hard to stack. :](https://preview.redd.it/lh9ikgy6isb91.jpg?auto=webp&s=0b165d058b4b3f5706d55cee1c048573a1e03fb0)
what are these bricks used for? Got them for free, they told me they were fire bricks but they got a "lip" in the back that makes them hard to stack. :
![12-in L x 4-in H x 7-in D Sand Concrete Retaining Wall Block in the Retaining Wall Block department at Lowes.com 12-in L x 4-in H x 7-in D Sand Concrete Retaining Wall Block in the Retaining Wall Block department at Lowes.com](https://mobileimages.lowes.com/productimages/f8c2f3d3-8478-48df-b3d8-bd83516a951b/00940856.jpg?size=pdhism)