50 connectors will install 25 classic square balusters (for 3/4' x 3/4' balusters). Engineering nylon + fiber glass + Anti-UV for best weather resistance.  50 real stainless steel screws are included meeting the highest hardness property class 12.9 standard. Sharp and quick.  Secure balusters to the rails tightly without drilling holes. No chips dust and noise. Create a hidden clean look to railing.  Work with composite wood and aluminum railings. Fast to install. Tips: Apply a small amount of silicone caulk at insertion for no rotation and waggle.  Connectors for line and stair rails please search in store. Quantity 50 or 100 pack options for contractor project use. Buy in bulk and save!...