Feature: Includings: 10-pairs (equals 20-pieces) of railing connectors, 120-pieces black coating Stainless Steel #304 screws. Easily and accurately install the 2 in. x 4 in. railing (actual 1-1/2 in. x 3-1/2 in. ) to post at 90°. Sanding/trimming may be required at railing ends' corners and edges due to wood external size error. Myard Railing Connector works on wood and composite railings. 10-year warranty. Upgraded materials: Nylon plus Fiber plus Anti-UV. 2 times more durable than normal ABS, PP products. Color options: Black, Red. Each connector 4 holes at side for installing railing to post with 4 screws at 30 (weight capacity 50% more).