VEVOR Lawn Roller, 17 Gallon 36 Inch Sand/Water Filled Yard Roller, Steel Sod Roller with Easy-turn Plug and U-Shaped Ergonomic Handle for Convenient Push and Pull, for Lawn, Garden, Farm, Park, BlackProduct Features 17 Gallon Large Capacity Design The VEVOR lawn roller features a large capacity cylinder that can hold up to 61 L of sand or water. It presses the seeds into the soil, increasing the contact area between the seeds and the soil. It also helps maintain soil moisture and temperature, providing an optimal environment for seed growth and enhancing their potential for germination. Easy Breezy Usage & Storage Assembling and using this yard