Wolf Garten Soil Grubber BAM Garden Multi Change Cultivation Tool The multi change cultivation range incorporates all the tools needed to keep borders in good health. Each tool has a solid robust design with tines, prongs and blades that will resist bending, wear and corrosion. This grubber is excellent for breaking up soil between plants, in beds and border. The sharp pointed prongs make light work of hard and stony ground. Part of the multi-change system, attaching it to a handle of the required height will prevent over straining.