Universal adjustable crossbar,from 13.5-20cm. 27cm length with 8mmL-Bolt for adjustable. High Quality: This car battery hold down is made constructed with premium iron stainless steel material,sturdy,and available for long service life.spray process for enhancing corrosion and rust resistance. Performance: The surface is anodized for a and durable finish.Easy to install and uninstall,provides steady holding for the battery.confirm size specifications for fitment purchasing. Color: Black material: metal Package Contents: 1x Adjustable Battery Hold Down Only the above package content,other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.