•“IMPORTANT SIZE NOTE: These plugs are approximately 0.397" (just under 3/8") in diameter and are designed specifically for Trex Enhance decking. They are larger than standard 5/16" plugs and will NOT fit systems like Pro Plug. Please confirm your hole size before purchasing to avoid fitment issues.” Trex screws and the depth setter tool are sold separately. Trex-branded tools are required for installation. Color-matched composite plugs for Trex Enhance decking and fascia Conceals screws for a seamless, hidden-fastener finish Collated design for fast, easy installation Secure ribbed fit resists popping and loosening 416-count bulk pack for large deck projects