woocommerce_cart_contents_weight filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_cart_contents_weight', 'filter_function_name_6917' );
function filter_function_name_6917( $weight ){
	// filter...

	return $weight;
}

$weight

-

Where the hook is called

return apply_filters( 'woocommerce_cart_contents_weight', $weight );

Where in WP core the hook is used WooCommerce