For fixing the diamond dome sunpipe Contains the following: 15 x 15mm self tapping stainless steel screws/washers: 5 x for fixing the collar to flashing plate 4 x for fixing the pipe to the ABS collar 5 x for fixing the dome to the ABS collar 1 x spare 13 x 45mm screws (depending on sunpipe size): 5 x for fixing the ceiling diffuser 8 x for fixing the flashing plate to roof 10 x Black Washers: 5 x for use when fixing the dome 8 x for use when fixing the collar to the flashing plate 1 x spare Silicone Sealant Silver Aluminium Tape