High quality drum lug. These lugs fits Modern Slingerland drums, also fit Studio king and Radio King shells. Order the mounting screws separately. NOTE: Mounting screws are NOT included with our lugs, since we offer many lengths for different shell thicknesses. Parts noted Slingerland style mean that they look a bit like the Slingerland parts, the hole spacing fit could vary. There are no standard there. If you are trying to retrofit a Slingerland drum, make sure to measure your holes to compare for a fit.