Dirt Locker® Mini (for distinctively-shaped boutique gardens, or narrow and steep project areas 25°-45°) Mini Dirt Lockers are great for steep and narrow side yards or uniquely shaped spaces as they are only 12″ wide once they are set in place. Not to be used as a stepping path. Can be made into a Mini 14″ diameter planter ring for small plants. See photo examples for reference.  The Dirt Locker® Tree/Plant Ring consists of two Dirt Lockers only, (it can not be made larger by combining it with more than two individual Dirt Lockers), and is used for individual trees or small groups of plants to protect them on a hillside. It protects plants from erosion and other surrounding invasive plants, as well as contains them within their pod, and makes irrigation significantly more effective. No J hooks necessary. The Dirt Locker® is a patented hillside terracing and erosion control system manufactured in the USA from 100% recycled HDPE plastic. Our products work best on slopes 10° to 45° and are available in three different sizes. Watch your plants grow successfully within the nurturing aid of the Dirt Locker® that will lock in moisture, soil, and nutrients. Together, the Dirt Locker® and your plants become a cohesive stabilizing force, protecting your entire hillside from nature’s destructive elements and providing erosion control that improves over time. As your plants increase their root structure, the hillside is constantly increasing in strength AND beauty!