Ona Block 170g - Polar Crystal Shipping This regulates the lifetime of

This regulates the lifetime of the product and ensures you do not use more than is necessary

keeping it in the ideal range for optimal nutrient absorption

nitrogen is required in the greatest amount

They can be used for making plant cages

You can easily grow herbs

Ona Block 170g - Polar Crystal Shipping This regulates the lifetime ofONA Block Small Size, Large performance The ONA Block is a small quiet workhorse when it comes to odour control. Put it anywhere and unwanted smells will be taken out the air. A small block packed with natural essential oils that are released in a timely manner, neutralising and destroying any airborne odours. Whether you put it in your gym bag, entrance closet or under your car seat, it will neutralise the strongest odours without being noticed.