-Replace stock plastic canopy mounts with these strong and stylish CNC aluminum canopy mounts set. This canopy mount set is designed to work on Align T-REX 500 helicopters to replace stock plastic canopy mount. This set also includes a strong aluminum canopy mount support. Both canopy mounts are designed with drill holes to allow users to insert small sticks such as small allen keys in to hold and tighten the canopy mount without using pliers.-Blue anodizing version.