2020 T-Slot 3-Way Corner Brace Aluminum Profile. High strength and hardness in use Suitable for connecting 20 series metric T-slot aluminum framing profiles at specified angles. The suitability of the connector depends on the shape and wall thickness of the aluminum profile. If it is tight, you can use a plastic hammer to adjust it. Size: 20x20mm Material: Aluminum alloy Color: Silver Package Contents: 16 x 2020 T Slot 3 Way Corner Joint Brackets (Black) 64 x Screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.