6Pc Hand Sanding Block Kit.Includes 6 different blocks:1 x FMT5528 70 X 130mm Soft Block1 x FMT5529 70 x 130mm Hard Block1 x FMT5521 70 x 198mm Soft Block1 x FMT5522 70 x 198mm Hard Block1 x FMT2090 70 x 420mm Soft Block1 x FMT2095 70 x 420mm Hard BlockAll blocks are fitted with hook and loop.Ideal kit for any one sanding large flat areasCan be used with all popular brands of abrasive paper with a width of 70mm