Bottom Plate Slab for Digitech Hardwire Pedals Protect the bottom of your pedals from hook and loop adhesive with Slabs. Works better than the rubber bottom for attaching adhesive products like Velcro and Dual-Lock. Slab is only 3mm thick and should be used over the existing bottom plate using new, longer screws (included). Slab comes standard in black. Available as singles, 2-packs, or 3-packs.