TOP QUALITY MATERIALS: Our battery hold down is made of high quality iron and stainless steel. Excellent and effective. Long service life. Easy to install and uninstall. This quality battery hold down can save your knuckles and time. EASY TO USE: The design is simple and the installation is convenient. Adjust the width and height according to the size of the battery, hook the J-hook into the hole on the tray, and tighten the wing nut screw to ensure that the battery is firmly held. FUNCTIONS: The battery clamp can fix the battery on the battery tray, stabilize the battery, and effectively prevent the battery from shaking and shifting. Specifications: Size: 11 inch length j bolts, 5.32 inch to 7.86 inch wide of a adjustable battery hold down. Materials: Premium iron crossbar & Stainless steel j bolt sets. Color: Black. Warm Notice: Before ordering, please measure the battery size to confirm the bracket fit and select the proper bolt length. PACKAGE CONTENTS: You will receive 1 piece 11inced bolts Adjustable Battery Hold Down Holder.