Connect the Acoustical Ceiling Knife Edge trim to the suspended ceiling grid using the Ceiling Grid Trim Clips included. Rotate the Ceiling Grid Trim Clip into the slots on the back of the Knife Edge trim and tighten the lock screw. Then attach the Ceiling Grid Trim Clip to the acoustical ceiling grid. Use the included Ceiling Cloud Trim Splices to connect one piece of trim to the next for level and clean butt joints. All Knife Edge Trims must be cut accurately and installed with tight, neat joints. Manufacturer recommends that a carbide tip blade along with blade lubricant be used when cutting any aluminum trim. Ceiling Cloud Splices, Use the included Ceiling Cloud Trim Splices to connect one piece of trim to the next for level and clean butt joints. All Cloud Edge trims must be cut accurately and installed with tight, neat joints. Manufacturer recommends that a carbide tip blade along with blade lubricant be used when cutting any aluminum trim