Grodan stonewool is known for its quality, consistency and performance. Each sheet of Grodan Stonewool A'Ok Starter Plugs is perfectly-sized to fit a standard flat and each plug has a pre-formed hole to easily plant seeds and cuttings. Once rooted, gardeners can transfer individual A'Ok Starter Plugs to larger pieces of stonewool or plant them directly in soil. This is a single sheet of 98, 1.5 inch plugs. 30 sheets of 98 plugs per sheet..