Perfect Kit: Comes with a hollow wall anchor setting tool that perfectly works with M3/M4/M5/M6/M8 Molly Bolts and 35pcs molly bolts in 7 sizes: M4x32mm, M4x46mm, M4x60mm,M5x37mm,M5x52mm, M5x65mm, M6x52mm, intended for use on 1/2”-1" thin or hollow walls such as drywall, plasterboard, and other board materials.