The purpose of Bowl Buffs and other similarly shaped products is the same - to buff concave surfaces thoroughly and safely. Unlike many other brands which are available only in firm and designed for metal buffing, these are softies. Being assembled from fewer plies of material makes them more pliable, which makes them better at conforming to wood contours. Each buff is offered in a specific material, each designed specifically for buffing either with tripoli compound (all linen), white diamond polish (combined linen and cotton plies) or carnauba wax (soft all cotton flannel). These buffs don't require a tapered mandrel: they can be mounted, utilizing the Wood Buff Combination Adaptor on a stationary motor, or with the addition of a Morse taper adaptor, on a lathe. Consider running them at a higher speed than the 8" wheels.