1、Band new and high quality 2、Heat sink for three phase solid state relay 3、Help dissipate the heat and protect your relay 4、Made of durable aluminum material, offers a long time use 5、Mountable heatsink design, compact size, easy to install Features: 1. Band new and high quality. 2. Heat sink for three phase solid state relay. 3. Help dissipate the heat and protect your relay. 4. Made of durable aluminum material, offers a long time use. 5. Mountable heatsink design, compact size, easy to install. Specification: Item Type: SSR Heat Sink Material: Aluminum Item Color: As Pictures Shown Fit for: Three Phase SSR Item Size: Approx. 11 x 10 x 10 cm / 4.3 x 3.9 x 3.9 inch Package Weight: Approx. 495 g Package Include: 1 * Heat Sink Note: Heat Sink ONLY, Solid State Relay NOT INCLUDED here.