Including : 4pcs insider connector.
Straight Extrusion Joint Connector - IT-TECH
Straight Line Connector, 7 Inch Joint Bracket w Screws for 3030
4040 ALUMINUM EXTRUSION
KOOTANS 4pcs Link Connector Joint Aluminum Profile
Made from high quality carbon steel, these nuts have high hardness and a long service life surface is Nickel-plated for good rust resistance and
PZRT 4-Pack 3030 Series Aluminum Profile Straight Line Connector,Length 7 Inch Bracket Fastener with M6 Screw,for T Slot 8mm Aluminum Extrusion
QIJINTRID 4pcs 5-Holes 3030 T Slot Aluminum Extrusion
20pcs 3030 Series L-Shape Interior Inside Corner Connector Joint
1PC 3030 Aluminum Profile Extrusion 100-800MM Length European
4040 ALUMINUM EXTRUSION
1Pcs Straight Line Inside Connector Joint Bracket with Screws for 20
4Pcs 180 Degree Aluminium Extrusion Profile Straight Joint Inside