1.Ultimate replacement set: essential drumming emergency kit with replacement cymbal and hi-hat felts, combined with full set of new cymbal stand wing bolts and sleeves, suitable for boom stands, cymbal stackers or heavy duty cymbal stands 2.Quality felts: all pieces are made of quality fibre-optic felt which are designed to last longer and provide better protection for your cymbals 3.Smooth fitting sleeves: ensure that your cymbals are perfectly positioned at the optimum height in order to allow complete control of setting up your drum set and delivering good performance 4.Wing bolts and washers: they can help to secure your cymbal and felt together tightly, making sure you'll never miss a beat (or cymbal) from spinning cymbal problems package include：