Akust PC Anti Vibration Kit PRO 8pcs x standard 22mm(H) rubber fan screw with grill loop 8pcs x Case fan short version rubber screw 12pcs x HDD rubber gasket & screw 24pcs x Sponge fan gasket with adhesive 4pcs x Rubber fan screw with push-pin 4pcs x Thumb screw 3.0mm for case or PCI card Material: NBR, silicon, iron, sponge foam